Should I break up with him

I have been with my boyfriend for one year and on Sunday it will be two. When we first started dating I saw that he was talking to other girls. Of course I confronted him and he didn’t lie. We did break up for two months but got back together. Now I check is Instagram and I saw that he was getting nudes from this chick. I’m not mad at the girl cause he could have told her lies or whatever. I know I need to break up with him but should I confront him or just leave.