Time Wasting Relationship

I was in a relationship with this guy for almost 4 months and he has a juvenile background or that's how you say it and today he went back to Juvenile and he's ex girlfriend wrote a status on FB talking about how he was coming to spend day wit him and stuff I was so mad like I really cried and every time I asked him does he talk to his ex he would call her B's, Stupid A** and all that and I messaged her and did they talk and then I changed my mind I told her that I don't wanna know and I'm sorry I bothered her! like I didn't her to confirm the shit! Idk way to do now!