Well we all know both of their pov anyway ml's only want sex he doesn't care about other at all meanwhile mc just protecting himself, ofc he wanted to close with ml and can't refuse to his face cuz he has feeling for him, the only way to move on is to avoid ml completely, I'm not saying mc is innocent and he didn't have any fault here, he also should have honest with ml when they reunited again instead of running away, he should communicate what he wants is something deeper than casual hook-up, but mc was sure about he has no chance with ml cuz ml shows zero interest in him and only treat him as fwb, mc will avoid ml at all costs cuz it's the only way he can escape, meanwhile ml didn't even know his real feeling so how can mc know he has a chance? That's why Ml is the main one to blame here

Poor baby I get him why he avoided ml, ml didn't show any interest in mc besides sleeping with him so ...for someone who wants more than that ml's actions are hurtful for mc even after they reunited ml is still a jerk