Honestly I hope Hwayeon finds someone better than the MC. Hwayeon made mistakes too, but dumping literally ALL the blame on her like that was such a bitch move. Hwayeon wasn't the one two timing their "not" relationship, nor did she ever pursue a girl she had good reason to believe assaulted her partner. (And Jeong Won's actions in the latest chapter, 48, on Lezhin are so unnecessary. Misleading her like that was cruel.)
I hope Hwayeon and Jeongwoo get together. Jeongwoo seems genuinely nice.