Yumi’s Exes Ranked: Who Was Actually the Best Boyfriend in “Yumi’s Cells”?
- Disha Paul
- 17 hours ago
- 3 min read

Yumi's Cells didn’t just give us a cute romance. It gave us something much more real relationships that felt messy, emotional, and sometimes painfully relatable.
What made the drama stand out wasn’t just Yumi’s growth, but the men she loved along the way. Each relationship came at a different stage of her life, and each one taught her something important.
But let’s be honest, every fan has asked this at least once: Who was actually the best boyfriend for Yumi? Let’s break it down.
Goo Woong (Ahn Bo-hyun): Comfort That Slowly Fell Apart

Goo Woong was Yumi’s first serious relationship, and in many ways, the most comforting one.
He was warm, simple, and genuinely cared for her. Their relationship felt natural, like something that could exist in real life without any dramatic twists.
But that comfort came with a downside.
Woong struggled with communication. Instead of expressing his feelings, he often chose silence, which created distance between them. His pride and inability to be emotionally open slowly became the reason their relationship started to crack.
In the end, he wasn’t a bad boyfriend, just someone who couldn’t grow when the relationship needed it most.
Yoo Babi (Jinyoung): The “Perfect” Boyfriend Who Wasn’t So Perfect

If Goo Woong felt real, Yoo Babi felt ideal.
He was attentive, understanding, emotionally expressive, and everything Yumi thought she needed after her breakup. He knew exactly how to make her feel secure and loved.
At first, Babi seemed like the perfect upgrade.
But as their relationship progressed, small cracks began to show. His kindness sometimes felt too calculated, and his actions didn’t always match the image he projected.
That’s what made his character so interesting. He wasn’t obviously flawed like Woong; instead, his imperfections were subtle, which made the betrayal feel even more real.
He taught Yumi an important lesson: someone can seem perfect and still not be right for you.
Soon Rok (Kim Jae-won): Quiet, Mature, and Exactly What Yumi Needed

Soon Rok is different from the others in one key way — timing.
By the time he enters Yumi’s life, she has already grown. She understands herself better, knows what she wants, and no longer settles for less.
Soon Rok matches that version of her. He is calm, respectful, and emotionally stable. He doesn’t try to impress her with grand gestures. Instead, he offers consistency —something Yumi had been missing in her past relationships.
Their connection feels less dramatic but more balanced. It’s not about butterflies anymore; it’s about understanding and partnership.
And sometimes, that’s exactly what love is supposed to be.
So, Who Was Actually the Best Boyfriend?
Here’s the truth: each man was right for Yumi at a different point in her life.
Goo Woong gave her comfort and her first real experience of love
Yoo Babi showed her what she thought she wanted, and what she didn’t
Soon Rok represents who she becomes after all that growth
But if we’re answering the question honestly?
Soon Rok feels like the best match for Yumi in the long run.
Not because he’s perfect, but because he fits the version of Yumi who finally understands herself.

Final Thoughts
What makes Yumi’s Cells special is that it doesn’t treat love as a fairytale.
It shows that relationships change, people grow, and sometimes the “right person” depends entirely on timing.
Yumi didn’t just find love, she found herself through it. And that’s what makes her journey feel so real.
Now it’s your turn, who do you think was the best boyfriend for Yumi: Goo Woong, Yoo Babi, or Soon Rok?



