Ok, so my Fiance and I have a great relationship together, but theres one thing i struggle with. She and a co-worker used to be f-buddies. However, as soon as we met, she stopped. She even had to tell him off, because he kept approaching her, and now they just a strictly professional relationship. Now what bothers me isnt the fact that i dont trust her. I trust her wholeheartedly. What bothers me is that sometimes i cant stop picturing them being intimate together. Somedays are worse than others. For example, sometimes well be in bed together, shell be sleeping, and ill look at her and just picture him on top of her doing what hes doing, which then keeps me up all night. But ive always been this way...jealous of the one before me. But usually the jealousy goes away rather quickly, and i think its because the girl im dating doesnt have anything to do with her ex/f-buddy anymore. But this time its different, hes a co-worker, which i think plays a big part in why i havent gotten to the point where it doesnt affect me. Not only is he a co-worker, they are taking the same grad school program together, and sometimes she helps him with home work. And then she comes to me and says shes going to be working on a project with him for their grad work. And then i find out that this fall, shell be moved into his office and theyll share it. I mean, it seems as if hes going to be in the picture for a while. I wonder if i'll ever forget about their past. Ladies out there, if you were her, should i approach you on how im feeling? That its not a trust issue, its just an issue of hes always there, so i think about it. And if you think approaching would be a good idea, how should i approach her? What should I say? Shes very defensive about her past, and one time even said to me "Its your fault you have those thoughts." I love her to pieces, obviously, i asked her to marry me. But this one issue eats away at me. What do you think?