I am generally fine only interacting with people face-to-face once or twice a month. All my close friends live states away, so we text or talk. I have my dog who I take on walks. And if I absolutely get tired of being alone (about once or twice a month) I go to a bar and strike up conversation. Sure I do vacations and concerts and the like, but in general I prefer being solo.

I've been this way my whole life. I like it, I definitely don't like doing stuff with people more than once a week, too draining on me. Amazingly I even have a girlfriend. She lives two hours away and we switch off who drives to stay the weekend each month.