Talk:Yumi's Cells/@comment-2601:CC:4200:411F:2D85:377A:CC4C:F213-20190906204226/@comment-43611905-20190907185937

It wasn't really clear why the broke up exactly, since Woong technically broke up with Yumi, but if you want a good episode range for recap, episodes 199-206 basically sum up why they broke up.

TLDR, Love Cell made a gourd that cells would throw bags at whenever they were upset with Woong, and it eventually broke, meaning that the relationship was causing Yumi too much stress. Because of this, Love Cell was prepared to break up with a "Farewell" card, or reconcile with a "Random" card if Woong used the "Reconcile" card, but Woong used his "Farewell" card first and ended the relationship.