Who do I choose?

So I have a little dilemmas. There two guys I like and both want to make things official with me and I don’t know what to do. One of them is my ex, he cheated on me in the past but we were regaining trust and working through things, he bought my v-day presents and has been really sweet. But then there’s another guy, who I went to a hotel with last night, and he’s so sweet and amazing and good with me. I want to give this new guy a chance and see what happens with him but I don’t want to hurt my ex, I still love him a little and I wanted us to work but I don’t know now. Help please!!