Human interaction is very draining, they don't understand how much energy it takes from us. I love people, socializing, but when I do, I am always "on", "up", it takes energy. It can be painful afterwards, need to rest, sleep, recharge my battery. Then we get depressed, feel bad. And then, we try again to please them. Many creative people spend most of their energy on what they do, think, concentrate, write, paint, etc., solitary things. It's who we are, what we have to do.