Gay friends?

I was just wondering what is it like to have gay friends as a gay guy? I know it's a strange question to ask, but I've never been in a good friendship with any gay guys. I've had boyfriends in the past, but I haven't ever kept up with any of them. I find it difficult, personally, to make gay friends. Whenever I meet a gay guy who I think is cool, and want to be friends with, they assume I'm interested in them sexually. Also, a lot of gay guys at my school tend to be standoffish and with diva like personalities which I feel makes them unapproachable.