Relations are done. Sorry for posting this late! I'd have done this sooner, but I've been sick for the past few days. 

In general, Joseph feels that the other characters are in therapy for a reason, so he tries to be understanding of them and hopes they get better. 

As for specifics, 

Alma Evans: Joseph probably wouldn't like her much either; he'd see her as judgemental and pretentious. He'd also notice she was avoiding him and do the same. And maybe sometimes he'd drink from his hip flask where she can see him, just to irritate her even more. 

Kyle Mare: I think Joseph would see him as a kindred spirit, kind of. They're the same age and have had problems with their spouses (or fiancée in Kyle's case). He'd try to befriend him; maybe try to make small talk or something, but this is slightly stymied by the fact that Kyle's problems are not his fault whereas he cannot say the same for himself. He really hopes that Kyle can recover and find happiness, because it would mean that he could as well. 

Aimee Askins: Joseph thinks she seems nice, if a bit shy. He can sympathise with her social anxiety, and respects her courage in seeking help for her problems instead of withdrawing from the world like he did. 

Maya Chen: He doesn't know her all that well, but he feels sorry for her because of her illness. He'd be polite towards her, but that's about it.