Never dated and no friends?

I’m in 4th year university. I’m outspoken and outgoing and never have trouble speaking to men whom I find attractive. However, I never liked the university lifestyle at all and I can’t drink because I suffer from an (under control) mental illness, which no one knows about except members of my immediate family. I don’t really want to have any friends because I find strong intimacy lacking in friendships. However. this makes it hard to meet people. I would like to have a boyfriend. I’m relatively attractive, average weight, pretty face, and my relatives are all puzzled (sometimes concerned) as to why I’m still single. I can get guys to like me and talk to me, but I can’t seem to find one to fall in love with me.