I hate to say this boo, but once the relationship was over he was free to do whatever he wanted to do; whether it was 2 days or 2 months after the break up. I can understand why you would be upset, but technically, I don't beleive you have a right to be. I agree with the friend who said it was unrealistic to think he would not be having sex, because you described your ex and someone who focused on sex a lot. I always tell people when they are dating and getting into a new relationship, or when they are ending a relationship, if the other person is not a virgin, do not expect them to not have sex for long periods of time while waiting on your ass. When I broke up with my boyfriend, I had sex maybe 2 or 3 weeks afterward with someone that I had a fling with prior to the start of my relationship. If i'm not in a relationship, I keep a "special understanding" with a special someone. We are both very open with what we do because neither of us want to be sleeping with each other if we are having sex with every Tom, Dick, and Harry; we value our health and have a certain level of respect for each other. I know that I am not one who will go without sex for a long period of time. So, if our relationship ends, know that I will not be waiting around for when I think you are ready for me to move on. Me having sex has nothing to do with you, the ex. It doesn't reflect how I feel or felt about you; i'm simply exercising my right to act in a manner I feel is ok given my current status, SINGLE. As far as being friends with an ex, i'm not for it. I have no problem being "friendly" and civil, but friendship is out of the question, especially if we ended because my trust was broken.