Here's the story. I liked her, she liked me but she had a boyfriend. I told her we couldn't be a couple unless u broke up. She said she loved me and didn't love the guy so she decided to broke up. However, she lied and didn't. After 1 month struggling, she finally broke up. And now she dumps me to come back to the guy. I was treated like ... I want to revenge . Make them suffer. I know it's not right but i'm so furious. What should I do ?