Bee's Favorite

I might not be 100% accurate since my Korean is not perfect. There are three books in total and the first two are beyond depressing.
So, from now on the ex boyfriend will treat MC coldly because his new BB asked him, since he doesn't want him to be back to Mc.
MC is heartbroken and falls into depression for some time. After meeting ML, he slowly falls in love with ML and feels jealous when ML' ex wife comes to talk (about divorce papers and such, because he thinks they are close) but he still has lingering feelings for his ex so he is torn between his past love and his new love (I think ML knew him from way back, but I'm not sure about that).
Long story short, the first and second book run around MC and his uncertain feelings for both of them.
At some point MC'ex broke up with his new BB since he didn't really love him (and apparently new BBe kind of knew things about MC being in a coma or such, but never told anything to keep the guy).

From this point on it gets even more heartbreaking. MC always though he had two loves in his life (Ex bf and photography). He doesn't want to lose the latter too so one day he decides to pick up his camera and leave again. ML said to him " the password (of his house) will never change", and the split for a year. In this year MC suffers a lot, he even had another surgery (head surgery I suppose).
While away he meet a guy (he met him when this guy was a child 5 years prior) and this one managed to insert some sense in MC's brain asking him "who is the person you want to meet the most"?

Mc encounter with ML is both hurtful and beautiful. They end up very happy at the end.
MC's ex ends up alone.