I’m an overworked single mom with no time or energy for dating, but I’m horny as hell. I want to invite my ex over for some good crazy sex, but I think he’s still in love and I don’t want to hurt him. We went through this last spring, tried being casual, and just ended up giving the whole thing another go-round, which of course didn’t work. I don’t want to keep putting him through that but I need a F-buddy! And I don’t have the time to meet and vet a new man right now. I feel like a guy worried about using someone for sex. What do I do?