<human>: First off, a little detail. He's dealt with depression and anxiety since his early 20's. He's always pessimistic, and he dropped out of college because he didn't know what he wanted to do.

This year he finally decided what he wanted to do with his life. He was going to apply to school in another statevand he was gonna move in with our cousin [22/m].

Well, cousin gets a job and starts soon, so he moves in with friends of his. My brother took a huge offense to this and now he thinks his life is ruined and he can't go to school anymore. Any advice I give him is shot down immediately by him. He's convinced there's no way he can go to school out there now and he keeps texting me things like "I was so excited to move on with life" and "I never want to see him again he pissed my off so much". He's now constantly complaining about how people bail on him and how friends are worthless and how nobody can be trusted. Our parents don't help too much either, because they're sick of him. I'm literally his one-man support system, and it takes a toll. 

I tell him to make friends, he says he hates people and that they'll just screw him over. I tell him to live in the dorms and he says "ew". He just doesn't have positive thoughts about life at all and I don't know what to do anymore. It stresses me out so much when he does this but I'm the only one that listens to him. 

He assures me he'd tell me if he was ever going to do something drastic, and he's always telling me not to tell our parents because they'll get mad at him. It's incredibly difficult trying to make him happy and see that perseverance and positivity get you places because he doesn't believe that.
What do I do?

Can you give me a shortened version of the text?
<bot>: Brother thinks life is ruined and can't move because cousin moved in with other people, I'm the only person that listens to him