So I have had a best friend for a while and she has had a past of taking other guys from people but I had been talking to this guy for a bit and he said he lost feelings for me when I started liking him and started liking my her. Obviously I was upset and I told her and she said she would never like him but we had a bonfire and she said that she wouldn’t talk to him because someone invited him but the next day I went into her house to find them making out. After she said that she didn’t care and that “stuff happens” but today she apologized and said she was truly sorry. I don’t really know what to do because neither her or him cared that I saw them but now they want me to forgive them. Any advice?