I'm glad I broke up with my boyfriend of five months
Why did you leave him?
I didn't love him anymore, I wanted to be free
That's good you didn't prolong the relationship before things got too serious. If the relationship doesn't work out, there's no point in making  yourself suffer when you could be out enjoying your life how you want.
It's not my fault I don't want to stay in a relationship with him anymore. He just needs to get over it and accept it, also I'm going to get back at him by waiting and not finding someone new for a very long time to make him jealous.
I don't think you should be wasting energh "getting back at him," but it's still good that you realized early on that it wasn't going to work out. Now you should just leave it in the past and move on.