Me and my fiance are living together for almost 3 years. We work together. (Yeah, I know...) There was this female co-worker we had and I've always sensed they had something going on. I've asked him numerous times and he always denied. I gave up asking and figured it was all in my head (I have some trust issues from previous relationships). Later on, we had this work party (mind you, we were still keeping our relationship secret back then, it was a couple of months after we started dating). Anyway, that night, that female co-worker got really close to him. They were dancing in a way I don't think is respectful towards me OR her HUSBAND. Yes, she has a husband and a child. Right there and then I knew they probably had something or still do. I waited till next day so I can ask him what was going on. A couple of times. Until eventually he admitted they hooked up together before but it was all in the past. Of course I confronted him, he apologized, long story short we were all good after we've discussed it. They were on another party without me and I saw pictures of just the two of them next to each other, chest to chest. He had his hand around her waist. You know what I'm talking about. It was basically as if a couple was posing for that picture. We've talked about that as well. He assured me there was nothing and it was just a picture, explaining she was taking them for her album. She switched her job position and moved to another place. It's been one year since then and everything between me and my fiance was going smooth. 2 days ago he told me she was switching her job position again and she might be working in the same place as him. In the same time, I'm moving to another place. You can guess how I'm feeling right now. We were planning to get married next year, start a family and all I can think about is how they're going to work together all the time. And I won't know what is going on. I'm so angry, jealous, sad, I don't know what to do. I've explained how I felt to him and he said I was being overdramatic. Am I?