It started when I met her in my first semester of college. Our relationship was just a hooking up basis, then I took a semester off. While I was gone she ended up becoming close to another guy that she supposedly "only made out with a few times". She admits to having liked this guy back then, and he liked her too but nothing past that ever happened. After that they stayed as friends. I have since then come back to school, began a relationship with her (it has been 8 months now) in which she has nothing to make me distrust her, but she has held onto her close friendship with this other guy. I have always been wary of him because of their close relationship, and the fact that they previously had mutual feelings. 
Now, my girlfriend has discovered and acknowledged the fact that he still has feelings for her (but he is also interested AND perusing other girls). She is close to him and does not want to cut him off because of that, which is understandable. However I am a paranoid person, and I fear that she is just holding onto him in case things don't work out with me, or is even talking to him simultaneously as if he were dating her. My relationship with her has been unstable at times, but it's undeniable that we have very strong feelings for each other. I don't want to force her to cut off this friend either, for fear that she will cut me off instead and take him. She lives an hour away from me, and ten minutes away from him, and they are planning to hang out at some point, she said an idea was an aquarium (this seems like quite a nice date spot in my opinion. She insists that I have nothing to worry about, and provided valid reasons in why she is not interested in this guy. Should I be this worried? There is evidence that supports him being respectful of our relationship, but also evidence that could suggest there are things going on behind my back.
user
My gf is close friends with a guy who had mutual feelings for and brief physical relations. They are close and he still likes
assistant
It started when I met her in my first semester of college. Our relationship was just a hooking up basis, then I took a semester off. While I was gone she ended up becoming close to another guy that she supposedly "only made out with a few times". She admits to having liked this guy back then, and he liked her too but nothing past that ever happened. After that they stayed as friends. I have since then come back to school, began a relationship with her (it has been 8 months now) in which she has nothing to make me distrust her, but she has held onto her close friendship with this other guy. I have always been wary of him because of their close relationship, and the fact that they previously had mutual feelings. 
Now, my girlfriend has discovered and acknowledged the fact that he still has feelings for her (but he is also interested AND perusing other girls). She is close to him and does not want to cut him off because of that, which is understandable. However I am a paranoid person, and I fear that she is just holding onto him in case things don't work out with me, or is even talking to him simultaneously as if he were dating her. My relationship with her has been unstable at times, but it's undeniable that we have very strong feelings for each other. I don't want to force her to cut off this friend either, for fear that she will cut me off instead and take him. She lives an hour away from me, and ten minutes away from him, and they are planning to hang out at some point, she said an idea was an aquarium (this seems like quite a nice date spot in my opinion. She insists that I have nothing to worry about, and provided valid reasons in why she is not interested in this guy. Should I be this worried? There is evidence that supports him being respectful of our relationship, but also evidence that could suggest there are things going on behind my back.
user
I [20/M] have a girlfriend who has close ties to a friend of hers that she has had relations with in the past. I
assistant