I just need to vent

My brother who is 41 moved with my husband and I on September last year because my older sister moved with her boyfriend and they didn’t have an extra room for my brother. So he asked us if we could rented him a room, at first I didn’t like the idea but then I agree as long as he was going to look for a job because he wasn’t working at the time. And is January and he is not working, he worked for a month on December and then the company didn’t call him anymore. I told him he can go two or three days a week to look for a job and he got mad because to him I don’t understand how hard is to look for a job, all he does is watch tv all day everyday, I’m sick of seeing him like that. He doesn’t go anywhere because he doesn’t have any friend. It’s hard for me, my husband thinks he has autism but idk because he does a lot of things that annoy anyone, he laugh alone when he is watching tv. I asked my mom if my brother has any mental issues but she doesn’t know. She lives in Mexico. Idk what to do, he pays his rent, its not a lot because we are helping him until he finds a job, I feel stress because he never go out the house and I don’t know what to tal to him anymore. I think he will never get married or have a gf because he is shy and at his 41 he has never had a girlfriend. It’s scared me to think he will end up alone. I want to help him but he doesn’t like to do anything besides eating. I’m sorry I know no-one will help me but i just wanted-to vent.