Search Results: pressuring girlfriend for sex

This guy that I had a casual hookup thing with recently used me to cheat on the girlfriend I didn't know about. We hooked up a few times in September and then things got "too busy" for him - which I believed because we're in school. Over the summer he admitted to liking me, and when I tried to start something he said he couldn't manage dating. I apologized for getting pushy and pressuring him and he said we would hang out and "fix" the situation of us not having sex soon. Last week he snapped a picture of him on a date. The next day we were messaging and he said he was only trying something out with a friend. I said I would still casually jump him but if there is another girl, we can just be friends. We suggestively texted for a bit and then he made a plan to come over. We had sex, and after he told me he had made an agreement with that girl to be together. He used me to cheat - he felt awful about it, but said he wouldn't tell her. I also told him I wouldn't tell her.

Now, it's been a week and he hasn't told her. I want to know if I should tell her or get a friend of mine to message her and say "My friend is in pieces, you should know that this is the guy you're dating" basically, but more elegant. Please help.

As known, in a relationship there are certain individuals that use sex as a weapon against the opposite gender. I've heard on talk shows about how some got manipulated into giving their partners his/her proof of love. Which one sucks the most?

1) Man pressuring his girlfriend into sex (she might be a virgin or might not) and saying something like ''If you love me, you would do it with me''

2) Woman withholds sex and wants it or it can be a virgin girl purposely using that as a way to get a man to marry her. Then she tells him ''If you love me, you would wait for me.''