Scorpio needs help understanding ex

My ex is a Gemini and I'm a Scorpio, we broke up due to the unfaithful Gemini. We had a horrible, public breakup and both said things we shouldn't have. We have been getting back together on and off for the last 7 years. The last time we got back together she told me she broke up with her gf. Well she didn't! She two times us, well I told the other gf. She got so mad at me. We started talking this past Christmas, and she started talking about marriage and us being together again. We talked about what went down, she said she loved her ex and was heart broken I did that but was over it. It had been a year. She said she still loved me, there's a lot of hurt but love still there. She wants us to work it out....I end up giving her $ 3500 for tuition and to fix her car. She was supposed to pay me back. I flew to see her, and we got into a fight. She beat me up, she flew to see me the next week because I had already bought her nonrefundable ticket. Everything was normal, all love, future plans again. Then when she went home she stopped calling and texting me. When I confronted her she had switched on me, she said we don't talk, your not my gf. She was supposed to make payments to pay me back and I said I never wanted to speak with her again after paid off. She said she agreed and said she will believe I helped her only because I wanted to be with her. I emailed her and told her happy birthday don't worry about paying me back. I have forgiven her for my sake because I want to be able to love again in my new relationship. She said you have someone new I said yes. I said I helped you because I cared you were to stupid to realize it so leave me alone. She hasn't contacted me. We were engaged, on and off 7 years. We were each other's first love. At least she said I was here. She lies a lot. One day she loves me next she doesn't, so sick of it. I know I said I didn't want her to contact me but I miss her, just as a friend. Will she ever contact me? Do you think she ever loved me? Why manipulate and play with me? And then pretend like I ruined everything. She initiates us getting together every time. Soon as I give in she flips. I was there through all the bad, loyal. Why does she hate me? Gemini's please help me understand, I've moved on and forgiven her but it hurts. I love her.