I'm 19 and my boyfriend will sometimes hit me. I actually don't mind it because it's the way I was raised. Lately he's stopped and I've been bruising myself on purpose because I've grown to like the pain. I know this isn't normal but is there anyone else who does this? I don't always like it but for some reason I feel closer to my bf after we've had a big fight? Idk....

Get out. Go to your Dr or an assaulted woman's service. Really, please do it.
What I say to you is that if you are beaten in a relationship, it is not a healthy one so get out. There are classes you can go to for people who are used to abuse, it will teach you to be more self confident and get into real relationships.