Is it fair to be lonely when lots of friends want to hang out with you?

Problem always is there are a few certain people I would really like to be able to spend more time with and just can't. Sometimes dwelling in the loneliness is better than going out and having fun with everyone I can manage to go see.

I think I have far too many imaginary 'potential' conversations with people and forget all the things I havn't really said to them.