Your have a tendency towards SPD (Schizoid Personality Disorder). Check out the link below. I think it will explain exactly what your feeling and why.

http://www.geocities.com/schizoidyg/...d2welcome.html

Your are perfectly normal. I'm exactly the same way. I feel extremely good entirely by myself. I'm productive and happy and everything is nice when I'm alone. When I start hanging out with people that use emotion as an actual exchange system for happiness and conversation it totally misses me. When I find people who converse in logical, rational intelligent way all the time I do really great with them.

I have difficulty having relationships with women because I can't really find any that stay at a non emotional exchange level. Thank heaven for strippers ;--}