Should I tell my man what's really bothering me, even though...?

This is hard to answer because as a guy i truly understand how a guy can just be hanging out with a girl and not have any intentions of cheating, but i do not know this guy so i can not speak on his intentions. i will tell you this you must talk to him about how you feel, now before you do this you need to si t and think what it is that is really bothering you about this and i mean more then just hey shes your ex you should not hang with her. you need to tell him exactly how you feel, if you are afraid he will cheat tell him that but say it in a way that does not accuse him of being a cheater and don't say it in an angry way being angry or accusative will only make things worse. the main thing to remember is you two say your in love and love means being 100% open, true love means no secrets means no lies no hiding, because if you truly love someone no matter what they do or say you will still love them. another thing is that if you hold your emotions back they will not go away you can try to hide them but they will never go away and if you keep hiding them it will eventually build and destroy you and your feelings for him. you are not a baby for being open with your feelings in fact your are far more mature excepting you have these feelings and trying to face them and work them out with him. please be open with him, you cant be with someone you cant trust all you feelings to, the whole point of being with someone is so that you can have that connection and trust them with everything. i urge you to open up and tell him how you feel just do it in a calm well thought out way and do not act angry or accusative. i cant say how he will react but if he loves you he will understand and though he might be annoyed he will care more about making you feel happy then going somewhere with his ex.and if he can not accept your feelings and you feel like you have to hid your feelings maybe you should evaluate your relationship with him. i wish you the best of luck and if you have anything further to ask or need clarification on anything please ask.