I have to second third and fourth people on the wonderfulness of quiet time at home. I have friends who are social butterflies and I love them to death, but they're like a whole different species. It takes tremendous energy for me to interact with people I don't know, where as they seem to
get energy from it. Craziness
My husband would describe himself exactly the same as you, Mauv, social anti-social

He claims to be shy, but is always chattering away at new people. He says he makes himself do it on purpose.