I am in the same boat. I think I am just fed up with people. Also it is work to have friends and I'm not willing to do it right now.

As others have said, it's bad to isolate. I want social contact at my convenience. That sounds selfish but its just the way my mood is- I can't help it. One day I'm overconfident and happy as a clam, the next -0 confidence, anxiety through the roof, and it seems my brain was shut off cuz I have nothing intelligent to talk about.