I can relate gloamingone. I used to have a cat and I of course love my friend, but like you said it only takes me so far. I also want conversations with adult humans, but not just any random human, I want something meaningful like what I have with my friend even if it's not entirely on that level. I just feel very isolated and alone, even though I try to go out and socialize. It's just not often that I meet someone I want to be friends with, and even less often that I meet someone I end up being friends with. I get temporary conversations at most. I hope you find some people too.