Is it okay for your boyfriend/girlfriend to be friends with their

My boyfriend is still good friends with his ex girlfriend, who he dated for 3 years. I have been with him for 1 month and it makes me uneasy that he will go places with her - like he is going to a concert with her cause apparently it was already...

organised before we started dating. He assures me that I don't need to worry, as he isnt attracted to her anymore (with the risk of sounding conceited, I AM more attractive than her, but am still wary). She will leave little comments on his facebook page like 'hey babe if your free tomorrow then come over.' and I just know she is doing it on purpose cause she knows I will read it. She will also leave comments on his photos saying stuff like 'Oh you've changed so much since we started dating all those years ago.' and I take that as her way of reminding me that they used to go out. It is really bugging me but I try not to say anything as I dont want to look like the possesive insecure girlfriend. I really really like him and want this to work. What do you guys think about this?

hmm well I'm friends with my 1st ex and nothing more.. but to me I think this girl is trying to get into your head. she's trying to make something that used to be (her and your boyfriend) work and it's not
you have to have trust that there is nothing going on with them and if you stop trusting him about it tell him how you feel.

don't get to worried about it. just make sure he spends time with you more than her.

Sorry, but hanging out with an ex when hes involved in a new relationship isnt good no matter how you try and justify it. You need to communicate your concerns to him, and tell him you dont like his ex's behavior. If he doesnt respect you enough to stop, then he wouldnt be worth staying with.