Why do people get mad at the third person when they find their partner cheating and not at their partner?

My ex married a girl this year. They met 2 days after I left him for the last time. He's a narcissist & lies unnecessarily (diagnosed by docs) has been trying to reach out to me, even came to my work for years. I literally hide when I see him somewhere. She got into her head that I'm making a move on him and is stalking me online and even has a whole account with shitty memes how I want to be a side bitch, am a whore and want to live the life he has with his beautiful wife. Some people will believe the partnere lies or see someone else as evil, just to not deal with how the blame lies with the partner. I ran as fast as I could from him, but she chooses to stay & slut shame a woman she doesn't even know. Shows how unstable the foundation of some relationships are, but the lack of willingness to set boundaries.

/r/TrueOffMyChest Thread Parent