The worst part of being single right now, the one thing that cannot be replaced by any combination of emotionally intimate friends and physically intimate pick-ups:
Not light little playful/seductive backrubs, either. Backrubs that dig in and knead and work rock-hard muscles into putty. Backrubs that hurt they're so badly needed. Backrubs that involve fists and elbows. Backrubs that last as long as they need to. (I think maybe some people can get these from their friends? I dunno, I really don't touch my friends much. I wasn't hugged enough as a child.)
Fortunately, unlike most boyfriend services, this can be purchased. I've many times felt waffly about buying a massage and never actually done it, because I get all weird about buying a luxury, I guess. But it's not that expensive, and I can certainly afford just one, and I think it would do absolute wonders for my back and my brain.