Warning: Major spoilers for Netflix’s Our Sticky Love below.
Memory loss is at the center of Our Sticky Love.
After Go Eun-sae loses her memory, Jang Tae-ha tells her that he is her boyfriend — even though they were never actually dating before the accident.
For several episodes, Eun-sae lives inside a version of her life that Tae-ha has helped create.
So one question becomes increasingly important:
When does Eun-sae finally get her memory back?
And once she remembers everything, another question immediately follows:
Why doesn’t she tell Tae-ha?
The answer changes the relationship between them.
Eun-sae eventually recovers her memory, but instead of confronting Tae-ha immediately, she keeps it secret.
For a while, Tae-ha doesn’t realize that the woman he has been protecting now remembers much more than he thinks.
The Short Answer
Eun-sae gets her memory back around Episode 8.
Her memories return during the dangerous confrontation involving Tae-ha and Baek Sang-gil’s men, after Tae-ha tries to send her away for her own safety.
But Eun-sae does not immediately tell Tae-ha that she remembers.
Why?
Because she knows Tae-ha.
She realizes that if Tae-ha discovers her memory has returned, he will once again try to protect her by pushing her away or sending her somewhere safe.
Eun-sae no longer wants Tae-ha making those decisions for her.
She also wants to continue investigating what happened and does not want Tae-ha putting himself in even greater danger because of her.
So she makes a surprising choice.
She pretends that she still doesn’t remember.
What Did Eun-sae Forget?
Eun-sae’s memory loss is not just a convenient romantic plot device.
It changes almost every important relationship in her life.
She cannot fully remember the events that put her in danger.
She cannot properly understand Tae-ha’s connection to that danger.
And most importantly for the romance, she cannot remember the true history between herself and Tae-ha.
That allows Tae-ha to tell her:
“I’m your boyfriend.”
Eun-sae accepts that version of their relationship because she cannot remember enough to challenge it.
But the audience knows something she doesn’t.
Tae-ha was not really her boyfriend.
Why Does Tae-ha Send Eun-sae Away?
By the time the story reaches its more dangerous phase, Tae-ha has one overriding goal:
Keep Eun-sae alive.
Tae-ha understands Baek Sang-gil and his world better than she does.
He knows how dangerous the situation has become.
And Tae-ha increasingly believes the safest solution is to remove Eun-sae from the situation entirely.
That means sending her away.
From Tae-ha’s point of view, it is an act of protection.
From Eun-sae’s point of view, it becomes something else.
Tae-ha is once again deciding her future for her.
That difference becomes crucial after Eun-sae’s memories return.
How Does Eun-sae Get Her Memory Back?
Eun-sae’s memories return during a moment of extreme danger.
After Tae-ha tries to send her away, Eun-sae witnesses the violent confrontation unfolding around him.
The shock of what she sees — including the fight and explosion connected to Tae-ha and Sang-gil’s men — triggers the return of the memories she had lost.
Suddenly, pieces of her past begin falling back into place.
And that changes everything.
She remembers Tae-ha.
She remembers their real history.
She understands that the relationship she believed existed before her accident was not what Tae-ha told her it was.
Most importantly:
She realizes Tae-ha lied about being her boyfriend.
Does Eun-sae Remember That Tae-ha Wasn’t Really Her Boyfriend?
Yes.
Once her memory returns, Eun-sae understands the truth about their relationship.
Tae-ha was not her boyfriend before her memory loss.
The romantic history she thought she had forgotten never actually existed.
But by this point, there is a major complication.
Eun-sae has developed real feelings for Tae-ha.
So recovering her memory does not simply erase the romance.
Instead, it forces Eun-sae to separate two things:
the relationship Tae-ha invented
and
the relationship they actually created afterward.
That distinction is one of the most important ideas in the drama.
Why Doesn’t Eun-sae Immediately Tell Tae-ha Her Memory Is Back?
Because Eun-sae knows exactly what Tae-ha will do.
He will try to protect her.
Again.
That sounds romantic, but from Eun-sae’s perspective it has become a problem.
Tae-ha’s instinct is always to carry the danger himself.
If Eun-sae is threatened, Tae-ha wants to move her somewhere safe.
If something dangerous needs to be done, Tae-ha wants to do it alone.
If someone has to take the risk, Tae-ha wants that person to be himself.
Eun-sae realizes that telling him the truth could cause Tae-ha to shut her out again.
So she doesn’t.
For once, Eun-sae wants control over what happens next.
Eun-sae Is Also Trying to Protect Tae-ha
There is another layer to her decision.
Tae-ha has spent much of the story protecting Eun-sae.
But after recovering her memory, Eun-sae understands how much danger Tae-ha is taking on because of her.
She does not want him risking everything alone.
So the dynamic begins to reverse.
Earlier:
Tae-ha knows the truth and protects Eun-sae without telling her everything.
Now:
Eun-sae knows the truth and hides information from Tae-ha partly to protect him.
That reversal is deliberate.
The person who was being protected becomes capable of making her own choices.
Is Eun-sae Angry That Tae-ha Lied to Her?
She has every reason to be.
Tae-ha told a woman with memory loss that he was her boyfriend when he wasn’t.
That is a serious deception.
But recovering her memory also gives Eun-sae something she did not have before:
context.
She can now understand why Tae-ha did it.
She understands the danger.
She understands Sang-gil.
She understands Tae-ha’s attempts to protect her.
And she can separate Tae-ha’s lie about their relationship from Tae-ha’s genuine feelings for her.
The lie was real.
But so was his love.
That does not automatically make what Tae-ha did right.
It allows Eun-sae to judge it for herself.
Why the Memory Return Is So Important to Their Romance
Before Eun-sae recovers her memory, there is always a problem with their relationship.
She does not possess all the information.
She thinks Tae-ha was already her boyfriend.
That means every romantic decision she makes is influenced by a false belief.
Tae-ha knows this.
The audience knows this.
And eventually Eun-sae has to know it too.
Otherwise, their relationship can never become completely equal.
The return of her memory solves that problem.
Now Eun-sae knows the truth.
And she still chooses Tae-ha.
That choice is far more important than anything that happened while she believed his original lie.
The Drama Reverses Tae-ha and Eun-sae’s Roles
One of the cleverest parts of Our Sticky Love is how the information imbalance changes.
At the beginning:
Tae-ha remembers. Eun-sae doesn’t.
Tae-ha therefore controls much of the information.
He decides what Eun-sae should know.
He decides how much danger to reveal.
He decides to call himself her boyfriend.
But after Eun-sae recovers her memory:
Eun-sae remembers — and Tae-ha doesn’t know that she remembers.
Now Eun-sae controls the information.
She decides what Tae-ha should know.
She decides when to reveal the truth.
She decides what risks she is willing to take.
The balance of power shifts.
Why Does Eun-sae Pretend She Still Has Amnesia?
Because revealing the truth would change Tae-ha’s behavior.
Eun-sae needs time to act without Tae-ha immediately interfering.
She knows his personality too well.
If Tae-ha believes she is vulnerable and unaware of everything, he will continue trying to control the danger around her.
But if he knows she remembers, he may become even more determined to remove her from the situation.
So Eun-sae uses Tae-ha’s misunderstanding strategically.
It is an interesting mirror of what Tae-ha did earlier.
Tae-ha once withheld the truth because he believed it would protect Eun-sae.
Now Eun-sae withholds the truth because she believes it will help protect Tae-ha — and give her the freedom to act.
Is Eun-sae Lying to Tae-ha?
Technically, yes.
She allows Tae-ha to believe something that is no longer true.
But the parallel between their lies is important.
Tae-ha lies:
“I’m your boyfriend.”
Eun-sae later effectively lies:
“I still don’t remember.”
Neither deception exists in isolation.
Both characters believe they are protecting the other person.
Both also make decisions on the other person’s behalf.
That is part of the drama’s larger question:
Can you really protect someone by hiding the truth from them?
When Does Tae-ha Realize Eun-sae Has Her Memory Back?
Eventually, the truth cannot remain hidden.
The relationship has to move beyond the cycle of one person knowing something the other doesn’t.
Once Tae-ha understands that Eun-sae has recovered her memory, the original fake-boyfriend relationship can no longer continue in the same way.
This is the real test of their romance.
Eun-sae now knows who Tae-ha really was before the accident.
She knows they were not dating.
She knows he lied.
And she knows enough about the danger surrounding them to make her own decision.
She can leave.
Or she can stay.
She stays.
Does Eun-sae Still Love Tae-ha After Her Memory Returns?
Yes.
And this is perhaps the most important consequence of the memory-recovery storyline.
Before remembering everything, Eun-sae could always wonder whether her feelings were influenced by Tae-ha’s lie.
But after her memory returns, that excuse disappears.
She knows the truth.
Her old memories and her new experiences now exist together.
And she still loves Tae-ha.
That transforms their romance.
Tae-ha is no longer the boyfriend she thinks she forgot.
He becomes the man she knowingly chooses.
Why Doesn’t Getting Her Memory Back Destroy Their Relationship?
Because the relationship that developed after Eun-sae’s accident became real even though its starting point was false.
Tae-ha lied about their romantic history.
But the experiences they shared afterward actually happened.
The conversations were real.
The danger was real.
Tae-ha’s attempts to protect her were real.
Eun-sae’s growing feelings were real.
By the time her memories return, she does not have to ask whether their old relationship existed.
It didn’t.
She has to decide whether their new relationship matters.
It does.
What Eun-sae’s Memory Really Represents
Memory in Our Sticky Love is about more than remembering names and events.
It is connected to identity.
When Eun-sae loses her memory, other people can tell her who she was and what her relationships supposedly meant.
When she recovers it, she regains the ability to define those things herself.
That is why keeping the recovered memory secret is such an important moment.
For the first time since the accident, Eun-sae is no longer simply reacting to the version of reality other people give her.
She knows.
She understands.
And she chooses what to do next.
Tae-ha Protects Eun-sae — Until Eun-sae Can Choose for Herself
Tae-ha’s entire relationship with Eun-sae can almost be divided into two stages.
Before her memory returns
Tae-ha believes he has to make decisions for her because she does not know the full truth.
After her memory returns
Eun-sae is capable of making those decisions herself.
That transition is necessary for their romance.
Tae-ha cannot remain Eun-sae’s protector forever.
Eventually, he has to become her partner.
And a partner does not simply decide what is best for the other person.
They decide together.
Final Takeaway
So, when does Eun-sae get her memory back in Our Sticky Love?
Her lost memories return around Episode 8, during the dangerous confrontation involving Tae-ha and Sang-gil’s men.
But she does not immediately tell Tae-ha.
Eun-sae knows that if Tae-ha realizes she remembers everything, he will probably try to protect her again by pushing her away, sending her somewhere safe or taking all the danger onto himself.
She does not want that anymore.
She wants to make her own decisions.
She also wants to protect Tae-ha.
So for a while, she lets him believe that she still has amnesia.
That reversal is what makes the storyline interesting.
At the beginning of Our Sticky Love, Tae-ha knows the truth and Eun-sae doesn’t.
Later, Eun-sae knows the truth and Tae-ha doesn’t know she knows.
But eventually, both of them have to face the same reality.
They were never really boyfriend and girlfriend before Eun-sae lost her memory.
Tae-ha lied.
Eun-sae remembers.
And after knowing all of it —
she still chooses him.
That is the point where their relationship stops depending on a forgotten past and finally becomes a choice about their future.