You are in a bad situation. Everyone who comes here is in a bad situation. However, we have seen some M saved. It takes times, and it takes work.......work from the LBS! The WAS does't have any desire to work on the M. I don't say this to cause you more frustation but to open your eyes wider. Don't expect R to come right away. Don't expect to solve your M problems with discussions. It just won't work.
To make things worse.....she has a boyfriend. Do you know if the A has gone physical? Would it be a dealbreaker if it has? An EA is serious for women. She has him in her thoughts and she's built a fantasy around him and how wondeful a future would be with him.
So, if you want to save the M, you need to work really hard on yourself. She will need to see the man she fell in love with and desire to be with him.
You asked her to leave, but apparently, she doesn't care that she's not with you. I do not think pursuing her is the right thing. It makes no difference if she expects you not to pursue......that is not where you need to do opposite.
You see, a lot of people come here and want to hear us say that it's okay to do (whatever they're trying to convince us about), but it's b/c you want to hear it so badly. Truth is, you got mad and kicked her out and now you wished you hadn't.
I can tell you that the number one thing that turns a WAW off is for her H to try to pressure her about their R. Leave her alone and work on yourself. You are not attractive to her. She has lost her desire for you. Chasing her will only make it worse.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!