Let's face it, the blonde used her childhood friend as a backup plan. If someone straight up told me that they are only interested because some other person rejected them, it would make me feel super shit and not interested in them anymore.
I don't get it, he confessed to the blonde and she ran away, a few years later she confessed to someone else and got rejected then she goes back to the first guy and says that she didn't reject him back then, and ran away because she didn't understand what love is. She even told him she liked him too but then why would she confess to somebody else if she liked the first guy? This doesn't make sense, but then she says the reason she tried to kiss the other guy was to make him jealous so he could stop her??? This bitch is walking red flag who's just using him as a rebound, the guy should've pushed her away if he was a chad and moved on to someone better, make her regret it.
I just found that this work has an official english prequel called [HANNAMA (Inato Serere)] I Did It Out of Love...