My ex-boyfriend and I broke up two weeks ago, he initiated it. We'd dated for almost two years. One week ago was his birthday, I just found out that he took one of his best girl friends out on the exact same first date we went on, but also got her flowers and kissed her. Do I have the right to be upset or since we are broken up, is it none of my business to even know any of that? I just thought he would've respected our relationship more that he wouldn't have moved on so quickly.