I am going to stop talking to my friend since she got a boyfriend.
What is causing you to want to end your friendship?
She's a bad influence on me and she brainwashed me into a relationship that didn't work for me.
If your friend got a boyfriend then you should be happy for her. It is understandable to be upset if you feel she is bad mouthing you, however you should not be upset with her just because of the fact that she found a partner.
She's rubbing her happiness in my face after fucking me over.
What she put you through was wrong of her. You should feel annoyed she's seemingly happy after blocking your happiness. Talk to her about this.