Hello, this is my first post but I need advice. I met my ex 4 years ago at work we fell in love moved into together and had a baby. We had loads of things happen my best friend died and my partner struggled with life with a baby. He told me he was unhappy and moved out. We carried on seeing each other but kept it quiet. He recently started to act differently and Ended it again. He acted so angry refused to speak to me and I was heart broken. It's become very obvious he is seeing a woman from work, I have to watch them giggling and flirting. This makes me upset but also furious he says he isn't doing anything wrong and continues to do it in front of me. I have to work with them both how do I deal with it?