For the past eight months, I've been sleeping with this one certain guy. He's the only person I have been with, and I lost my virginity to him. When we started having sex, I didn't really expect to get much out of it. We were each others' booty call, if you want to be blunt. But recently, I've developed strong feelings for him. And each time we're together, he leads me on by talk of a relationship. But I just discovered, through a mutual friend, that he is totally using me and he thinks very badly of me. He called me some rude and hurtful names, and it really broke my heart. I know I'm the one to blame, because I allowed our "relationship" to progress to this point with no strings attached, and I'm trying to move on, but I think about him all the time. I don't know what to do. Has anyone else been here?