Help!

So I have a wonderful boyfriend who I love so much. However, I'm going into my 1st year university and feel i need some freedom, and some time on my own. As a backstory, we have been together for almost 2 years, but recently we have been getting in a lot of fights, and he makes comments all of the time about how I'm gonna leave him and sleep around in uni. I don't know what to do... should I stay with him? Or should we take a break? He is just such a good guy and I feel he deserves better then a girl who thinks like I do...