Dear sister/brother, I am so sorry for what happened to you. Sometimes girls go through the same things. Firstly, you should alert your parents and tell them what happened. If he does this again then report him. It is not okay for a man to beat up a woman. Full stop. If something like this happens then please, please, please report him. He has no right doing that.
Remember God does not like the transgressors. Surely God will help you.
You are in my prayers.