How to stop hurting

My relationship is a little more complicated. I'm engaged to a man and a woman manipulated me without my knowledge. She complimented me and made me feel a million dollars, I had strong feelings for her and although not sexually attracted to her, I wanted to be with her all the time, I was hooked. I couldn't help myself, I felt rubbish without her.

Not long after I thought I had really strong feelings for her, I suddenly realised what she was doing (manipulating). I told her to stop pretending and she got really angry. She hasn't spoken to me since and it's been 6 months.

I decided not to speak to her again but it really hurts emotionally. Should I ask her why or try and rationalise with her. I'm happy otherwise but it hurts. I've deleted her off Facebook and I no longer speak to her.

How do I stop hurting?