MC was already doomed

I think some of you guys here don't get it, his group members aren't bad people for expressing themselves to him now rather than "helping" him in the past, I actually think they're saints for not holding anything over his head. First of all, he was aggressive, moody and disliked anyone getting touching him, he even made Chan sleep outside his room, of course it's not his fault since he has a baggage of mental health issues, probably PTSD from the things he had to do and he was too in his own head at this point, anything like this is enough to make someone go crazy, do you think you can actually talk to someone like that? or that the pat in the head he gave the blond guy is in anyway comparable to what his group members had to got through with him? lmao I'm sorry to tell you this but he already doomed from the start: a gigantic debt and whatever happened between him and his lover plus the shitty reputation he gave himself. Especially the debt, do you think anyone could've helped him with that? lmao when he was asking the MC for help with his sister, it's not only because he'll be gone, it's also because the MC is the only one who could've cleared the debt since he was a loan shark and actually get things in order since he didn't share any of the OGs mental health problems and attachments. I actually think that the only reason he didn't off himself was because he was afraid that the debt would be inherited by his sister, in a way him dying liberated himself, the MC from his life and for his sister it was like nothing has changed. Lastly the fact the the group members have kept their affections for him and are actually trying to take care of him now that 'he' seems better despite him ruining the groups reputation is really admirable, they did what they could for him and they're not obligated to do more even if they were bestest of friends before, he was too far gone in his own world to be able to get any better, he didn't to be helped and he couldn't be helped. I'm surprised he didn't get kicked out from the group despite being so problematic for them. Anyone would be happy if their friend miraculous became levelheaded and 'normal' again.