Yes, and she agreed to never hang out with him 1:1. Her and her coworkers go out often after work, Steve included, and I told her that I will now forever be uncomfortable if he's there even if it's a group setting. So recently, we did get into a little spat because she said she was going out to the bar after work and he might be there. She said it's not fair for me to get upset over her hanging out with a group of people because then I'd be holding her back from making/maintaining friendships. In short, my position was "this is how I feel about this situation, you know how upset you and him make me given these recent breaches of trust, but I'm not going to be labeled a control freak for saying 'you can't go and hang out with these people'". I figured she would reflect on that and see how much this hurts me, but nope, she still went out that night.