I am a fool

About 9 months ago I started dating this guy he moved to fast. He told me he loves me within 2 weeks asked me to marry him and we were only together for 8 months. I made a post on here about it and everyone told me to end it with him. My dumb ass didn't I stayed with him. Guess what happens he ended up cheating on me with his ex than I took him back and the broke up with me a week later. He is so different since he broke up we me. He was so rude to me telling to leave him alone that I was annoying and that it wasn't love.I been so hurt.bi wish I would have listened to the advice dorm everyone. Now I all alone with a broken heart feeling like a fool