I usually stay for a night myself, and he doesn't have much going on that can't be solved from the computer. He only leaves the house when we go out or shopping. So I guess the first part of your comment makes more sense. Thank you!

Thank you!

That's a fresh take from the one already ingrained in my head: he doesn't want to put the effort in. Never thought of that, thank you!

Fair point, although I did mention reasons that play towards his wellbeing which he is aware of. I can reiterate them if I wasn't clear the first time.

Also, it's not like I make him actively do anything, I just find comfort in his presence, which I agree is not a long term solution for my problems with my parents. I will have to stand up to them on my own one day, and I tried plenty of times already but it's like they forget the very next day. Admittedly I don't know how hard I'm trying because I don't want to completely lose contact with them, just to keep my distance, which they don't take well for now.