Re: She has a boyfriend, we cant stop seeing each other!
You should also AMOG the sh*t out of him, in a similar way as BF destroyer.
I also had the same situation, with an ex coming out of the blue (let's call him bob) and calling my new girl a slut because she was dating me, a friend of his (kind of). I was not there, but it was insanely difficult to fix it when I heard about it, you could feel her attraction to him
What did I do?
And calling him Babybob with her, until she starts using it. And now it's all "he kinda sucks actually... and sex wasn't really good :/". And every time she does, I am "Hey. Don't bash him like that, he's just not really confident, that's all"
"yeah, that's a problem with Bob... I was like him long time ago... he always need to have lots of girls' approval, else he doesn't feel good about himself... I shouldn't tell you this, so don't repeat it, but... he is actually one of the less confident person I've ever met :/"
The most important part being that now, when he tries to bash her, she doesn't receive it as a potential emotional rollercoaster, she receives it as a display of blatant insecurity and lack of confidence, which is utterly inattractive.
It is very important you reach that point in your interactions with her. Find the main point of conflict with the ex, and reframe it as a lack of confidence issue. Don't try to bash him, as it won't work: she will defend him, and he will look even better in her eyes (remember that opinions are stronger when people build them themselves). Actually sound like you are defending him, by explaining to her that this conflict is just because he lacks confidence. You basically make her friendzone him.
Seduction is a martial art. Reading books and talking to experts is important, and helpful. But you won't progress unless you go out there and fight.