Why do I feel like the mistress get to avoid any consequences?

I’m torn because I want to out this person so bad. Why is there a lack of girl code?

I found out ex partner cheated on me by the other person sending a request message a year ans a half after the affair ended. In-between that year she had been sending him messages asking why he hasn’t left me, if he leaves me, they can be together and the day she confronted him about me she demanded that he sees her that night and they slept together.

Her approach wasn’t sincere. To paraphrase her message, she highlighted how they were in a relationship, all the special treatment she got from him, that she wanted to clarify all the details about our relationship and what truths he actually told her.

Me and her got into it and she was patronizing. Stating that knowing I’m going though a mental breakdown is entertaining and she takes pleasure out of my misery.

I just want to get my lick back. To put her. To name.and shame her and share our screen shot messages to highlight how mu h of a shooting person she is. But I don’t want to spend more time other than writing this post to vent and get if off my chest. The thing is I don’t want to give her the satisfaction of attention.

If only I could report this type of mental and emotional distress as a form of harressment in New Zealand.