Why am I having these violent dreams?

Seriously, (and I'm really not joking) I would go to a counselor. A lot of folks think they're for crazy people, but I like to think that everyone's crazy. It just depends on how apparent it is. So feel no shame - tons of people go to counseling and it's helped a couple of my friends out a ton.

It may be that you've had some sexual abuse in your past that you may or may not remember, or it may be that you have some control issues. Either way, a trip to a therapist/counselor won't hurt any, and may help you out more than you'd think.

I would think if there is anything in your past that would make you think that this type of behavior is hot. I mean it is one thing to have a guy be a bit physical in a sexual situation, but hitting and hurting is a whole other thing/fetish that may scare off most people and possibly cause serious injury. I once saw a movie where two people were having sex. The woman liked to be choked during sex the guy ended up killing her by accident.

Seriously think about whether this is hot or if its just a little overboard. You may want to try talking to a therapist. It isn't a bad thing to do, I go once a week and it helps to be able to talk to someone who really isn't involved in your life.

You are probably thinking in school about being slapped around by some guy. Or you could have been watching too many lifetime movies. Often your dreams are about what you've been recently thinking about or what you've recently seen / experienced.

It sounds like repressed sexual desires.

Are you sure that you are eating a regular diet, are drinking enough water, and getting enough sleep in general? You may be having such violent dreams (or rather dreams that seem so violent) as you body's reaction to it's physical environment.

There may be also somethings from your past that you are finally dealing with in your dreams. It all depends on who you are, and what your sexual history is. I don't mean how many people you have slept with, but who you have felt sexual urges for. Teachers, Religious figures, Celebrities, Politicians, or even a super-popular guy, could all be loaning themselves to your dreams. If the man in your dreams is always the same one, you should probably spend some time in self reflection and figure out why he might want to hurt you, let alone have sex with you.

I don't suggest confronting the man in your dreams in real life. That would be. Bad.