Definitely the older I get (coming up on 64) the less time I want to spend with people I don't really want to be with. Even if I'm 'wasting' time sitting here reading DU or Charlie Pearce for several hours at a time, I would rather be doing that than having to go out and be social.
Yesterday I had a fantastic long lunch with two friends, it was great. But they were people I chose to be with and we have lots in common to talk about etc. Last week I went with my husband to have dinner with his elderly aunt, his cousin and cousin's girlfriend. They are all perfectly nice people, and we do this a few times a year. But imo it's such a drag to have to go. Basically I sit and listen to them all talk over each other, lol. I try to be pleasant and throw in a comment or two but I always look forward to it being over.
I no longer accept invitations for things I don't want to attend--other than family things that I really feel obligated to go to. My philosophy now is life is too short to spend it with people I don't care about or worse, don't like and have to be nice to. I know that sounds like I'm a recluse or party pooper but I don't care anymore, I've learned to say no finally. Luckily my husband knows how I am and doesn't ever pressure me to attend things he knows would make me miserable. (We live in the area where he grew up and his former high school crowd seems to get together all the time....ugh!)
So Steve, DO be ok with how you are now. There's nothing wrong with you, unless you become agoraphobic maybe!
Cheers