So I don't know what to do. A little background before I ask though. I've been friends with my ex ever since high school, which was almost 7 years ago. I moved far away which broke us up. We've always been very good friends that stay open with each other even when life gets crazy. Now we have always respected each others relationships, because we have our own wants and needs that come with having a life. Recently my ex got a new boyfriend that didn't take to kindly to us being friends because we use to date. Now I see why it would bother him, but he doesn't even care to meet me so I can show him what our relationship is like which is just friends. I even have a girlfriend that I'm very in love with that accepts my friendship with my ex. Normally I wouldn't push back because this is my friends relationship, but for me some red flags are firing from the way he's acting that scare me for her sake. He seems like a manipulative person that gets jealous when he sees something that threatens his control of her. Last night my friend called me in tears because he told her that it was him or me. I came to the conclusion that in order not to hurt her I needed to back away without leaving her if she needed me. Now I'm leaving for a training that will take 4 months that also takes away my phone. I can still send her letters and she can to me but I'm worried. She doesn't want to lose our friendship as much as i do. I don't know what to do in the short time I have left. All else fails I'm going to confront him, especially if he thinks he can control or hurt her. Any advise helps, even if it's how to approach him.