I knew my girlfriend before we started dating and I knew she had a male best friend. No big deal. I was fine with it but shortly after we started dating her and I were both ghosted by him completely when he started dating someone new. He literally would not respond to messages or take calls from either one of us. I went ahead and blocked him everywhere because if you ghost me, it’s not temporary. We figured she was toxic because it immediately turned into Soulmate posts and pictures on Facebook and an immediate engagement in the first six weeks. Fast-forward two months and she cheated, of course, and now he is back to messaging and commenting on my girlfriend’s social media and I don’t want any part of it. I told my girlfriend to do what she feels is best, but I am protecting my peace and do not ever want to be around him. AITAH?