I started dating my bf a few months ago, then we broke up about a month and a half later. My supposed BFF always flirted with him but I didn’t realize it till about 1 month after we broke up. I confronted her very subtly and made it seem like I was teasing. A few weeks later she told me she did like him. It seemed like all she talked about was him. I started dating him 2 days before Valentine’s Day and she didn’t find out until last Monday. She didn’t say a thing about it after I told her. Should I ask her if she’s ok with it or don’t care? But at the same time she talked crap about me to him, so why should I care but so the same time I’m still mad at her. Please help!!!!!