i've been with my girlfriend for like 8 months or so. i'm in for a long term relationship and if its stable enough maybe marriage. but her ex boyfriend whom she still thinks bout time to time is trying to contact her and still trying to get back together with her. it really bothers me and she doesn't want me to go talk to him and stuffs. so i need some suggestion on how do i make her stop contacting him or in fact, him contacting her. thanks.