Talking to ex !

Amanda
So my boyfriend of 6 months , told me from the gecko that he still talks to his ex's as friends: I really didn't have a problem with it until recently. Now I don't feel comfortable with him talking to his ex and told me that I should of said something from the beginning and I shouldn't give him an altamatum. Idk what to do he's done stuff in the past that makes me not trust him, but I never caught him cheating.