What I did about my love situation?

Ok…well im going out with the guy I told you guys…and im very happy. but it gets me mad that his ex girlfriend goes out with one of his friends which means they see each other a lot becuase the guys hang out and she comes along…and I dont like the fact that I cant be with my boyfriend..But recently we have been thinking about telling my parents that we go out..but im scared they might not approve our relationship..or worse not let me go out at all.Becuase I dont want to hide this from my parents but at the same time I dont know how they will react…well its two questions on one…I dont like the fact that my boyfriend exgirlfriend hangs out with them an I cant…and that makes me mad…and I dont want to tell my parents and he asked me if I was ashamed of him…and I said NO!.im not ashamed of him its that I have a duaghter from another guy and I dont think my parents will approve of me going out…because they will be to scared of what happens??? HELP PLEASE???