I don't have much to say in support really. My ex husband did this to me. He told her we were broken up, we weren't tho, not even not getting along. He even had me cut his hair so he could go on a date with her, under the guise of going out with friends. I found her number in his pocket while I was doing laundry, I knew and I called her. I was polite, she didn't know we had a one year old son and that I was pregnant and we were together.

That was a horrible moment in my life. The pain, betrayal, humiliation, anger, disgust that he was having sex with me and with her, fear of getting an std, having my right to have a say in the matter taken away. It was a feeling of violation. No one gave me a choice.

Good guy? Have you really thought about what exactly he is doing to her, and what she will go through when she finds out? Have you thought about what he is doing to you? Thats not love, I am not sure what it qualifies as, but love is not selfish. Love isn't putting people through this.. not her and not you.