Is my boyfriend's ex-gf a threat to our relationship?

[M]

My boyfriend and I have been dating for 8 months and get along great. We're both 22 years old, and go to the same university. My boyfriend still talks to his ex-gf and they also work together - so they see each other frequently. When the ex gf became aware of our relationship, she started becoming more active on my boyfriend's facebook profile - commenting on EVERY single thing in attempts of ticking me off. My boyfriend tells me he makes an effort to constantly talk about me in front of her so she understands my position in his life, but she has told him that she prefers him not sharing his relationship stories with her. She's extremely jealous of me, and is constantly nagging to him about how he isn't giving her enough attention anymore, and isn't seeing her much either. I trust my boyfriend wholeheartedly, and he has also told me how he doesn't really care to see her as much anymore. My question is, is the ex-gf a threat to my relationship? She's clearly envious but is this something I should be concerned about?

[Sean]

obviously your boyfriend is still seeing her sexually, open your eyes, you should end this relationship. he is having his cake and eating it, you seem to be just there for sex and doing his laundry. hope this helps all the best

[Billy]

I don't mean to be over dramatic but honestly she will try to wiggle into your guys relashionship I belive you should talk to her don't be rude about it but just sit her down and say what his position in your life is and see what happens if you don't mind it would be great if you answered my question hope I helped thanks http://answers.yahoo.com/question/index;_ylt=Av2sqDFVGMpcmPWOpFOQderM_Nw4?qid=20140315153040AAoBJul

[me]

Open your eyes, your boyfriend is not the innocent angel and this girl is not satan. She is obviously still into your bf and he's clearly into her too. If he wasn't, he'd see the obvious problem with still hanging out with his ex, talking to her regularly, working with her, etc.

Your boyfriend is still interested in his ex. If a guy refuses to cut an ex out of his life, he still likes her. If he's over her, he won't mind not talking to her, period. Just trust me on that one. If you take away nothing else from these answers, just remember that.

[Olivia]

if he is saying and doing all that: no. if he wasn't acting the way that he is (which is in a good way), then i'd be concerned. let her be jealous, you have something she desperately wants but can't have. ha