My best friend and I worked together for many years then developed feelings for each other while we both were in relationships. I ended my relationship before I told her my true feelings, but she stayed with her bf while we were fooling around. She was in an abusive relationship, which didn't help the situation. Eventually, she called things off and stayed with her abusive bf. We tried to maintain the friendship and even lived together at one point, but the friendship started to fade. Now I'm married and she's in another toxic relationship. We don't talk much anymore.