@sassy123 of course you didn't deserve this and it's cruel of someone to do this to you. When we are already down and then someone hurts us further it's such a blow. All I can say is do the things that lift you up and make you feel empowered so that you're more likely to attract a more respectable person. I think when we are super low we are vulnerable and the wrong people come in and take advantage.
I'm tempted to recommend you take up kickboxing or something so that you feel stronger and wake up your inner badass. It's also a good way to get frustrations out. (The elliptical just doesn't feel as good as punching a bag, y'know?)
No matter what, I know you'll rise up. Give it time, heal and strengthen yourself so that you can attract wonderful people instead of jerks like this.