Margo/Ostyia.
You can be pissed about it. Maybe you should be, maybe you shouldn't be, I don't know, that's not for me to say. What it is for me to say is that there are other ways of getting revenge. Success is the best, I find. Succeeding when others say you cannot or should not? That is a bitter pill.
Well, that and sleeping with people who you shouldn't, but that is a task I take on my own.