So a friend of mine and I had a falling out a few years back (I was closer to her than anybody, we were best friends at one point for 2 years - I met her through my ex boyfriend, who she had gone to primary school with many years earlier, who he had dated briefly before dating me) I received an apology message over Facebook hoping for my forgiveness etc, etc, hoping to still be friends and that all was great. This ex boyfriend and I had a rather messy break up 4 years ago and from what I've heard he's got a mad vengeance against me. But he's stayed friends with that friend of ours and even though she knows what an utter headcase he is, she still just wants him around. So she's getting married and so she sends me an invite in the mail for her engagement party asking me to come along. Sometime shortly after the inivites were out she thought it was important to tell me that she had invited my ex. I told her I didn't mind as long as i had my man there to watch me all was good. She sends me a message a week ago saying that she is sorry but "you know how Daniel's head works, in the past," and then went on to say that she had to tell another friend not to bring another one of Daniel's "arch enemies" along to the party. So basically I've been shut down on account of my ex boyfriend and I'm wondering whether it's just competitive rage I am experiencing or is it really fair to take back an invite because two ex's may clash at the party?