i need some serious advice....

me and this guy have been dating for 6 months and couple months back he was texting a girl behind my back planning to take her away for the weekend and so on, he never told me because he never thought I would find out but one of my close friends told me, and he apologised so I gave him benefit of the doubt and carried on, after he became clingy and when we was laid in bed he would stick to me the whole time and he kicked off one day because he wanted sex and I didn’t so he left my house, while he has been clingy I don’t like it and I told him if he could just chill a little bit...this is where he went mad (all because I told him to be a bit less clingy) he drove to my house at 2am demanded I give him the iPhone X back he gave me and I tried to close the door he then tried to barge into my house so I slapped him in and he ran at me to slap me back and then stopped and picked up lots of stones from outside my house and threw them at my face and chest and then called me a sket (which means slag, slut etc in case people haven’t heard the word) and since then he has apologised and said he will never do it again but something inside me just feels so put off and disgusted at how he acted...bare in mind I only went on the defence and slapped him when he tried to come into the house is because he’s 6ft7 and I’m 5ft6...help me please am I being dramatic about ending it....honest, brutal advice is very much welcome!!

p.s he’s 28 and I’m 23