i also would have left if i was in that situation. you know he has some issues, and you just can't live with someone with them because it's too hard. it seems like he's not even trying to change, which he should do if he wants to be with you.as for being friends with him, that would probably be very hard not to get involved again. i would also wait awhile to talk to him again to give him some time to get his act together, and maybe he might even need a hospital stay to get on some meds for his depression and anxiety, they won't go away on their own and that is why he is behaving how he is now. he needs structure.he is hurting you when he stays up all night and lives according to his own schedule.