Is it bad what she did?

Well for a month I went out with a guy named Jared. He was so sweet etc but he cheated on me so I broke up with him and I still really liked him for about a month after the breakup. Then I had a boyfriend named Brian (didn't exactly like him just for pity, I dumped him after 6 days because I liked someone else named Matt and now we're going out. Anyway my friend Sarah asked out Jared and he said yes. Everyone says we were a cuter couple and that it was wrong of her to date any of our ex's. What do you guys think? Thanks!