A lot of people missed the entire purpose of the drama because they were so focused on jojo ending up with Sun-oh. It was never really about the relationships but the message about love itself and how it can be perceived and change and it sucks that people are saying the show sucks now because they didn't ended up together.

This drama is quite realistic, it's doesn't go with the romantic happy go lucky kind of kdrama direction. They also explained why Jojo broke up with Sunho but not sure why many are still clueless on this part. Jojo and Sunho are first love, one with passion and lacking maturity plus, Jojo couldn't overcome her trauma and personal issue and decided to run away from Sunho for fear of hurting herself if bad things happen to him or their relationship. 4 years past and it seems like Jojo still have feelings for Sunho but in reality, those are just memories that she clings onto. It is missing a strong foundation to begin with as compared to Hyeong which changed Jojo bit by bit and eventually touched her heart. As you mature, what you want for love tends to change and Hyeong and Jojo's love is built with a foundation that many didn't notice, if you think about the little things he did, it matters and it build Jojo's confidence as a person. However, I think S1 has better pace than S2. Still, it's an enjoyable drama.