This is quite interesting, there's a lot of opinion here but let me also say something. In every profession or in any situation, there is someone better than you. You are not alone in this world.
I hate the fact that he calls another girl while doing snu snu with the mc. That's unforgivable and ending it like "be my mate" while knowing that he still has feelings with the other girl aaaa.
PLEASE! LET ME HAVE A MAN LIKE KANG SEUNGHYUN!!!