Plus sex is a lot of work, sweaty, dirty, wets up the blanket and sheets. And you have to talk before to get there, and are expected to talk after.
Then again, Ive never been much for companionship. Some people seem like they cannot function without a significant other, no matter how good or bad that other person is for them just so long as they have the illusion of being loved.
You know who's always there for me? Me.