I came here to say just that. This sucks on principle. She clearly had the intent to do just that.

The structure of the sentence can be interpreted both ways, but I think for the sake of this FML, it's likely the friend was the one who made out with the random guy, and not OP.

That's not the point. The friend wanted to catch up with OP and instead ignored her.

If a friend invites me to "catch up" and decides to go wild with anyone, why should I wait there? The friend clearly didn't care, so OP shouldn't either! That's my point...

It is strange to me that people go to clubs to catchup. usually you would rather go to a quite bar or park. Because this is what happens in club. You might get related to other people. And some people (I know grils like this) are totally unable to refuse some guys provided they are at least slightly atracted and has had one or two drinks. I mena, come on, clubbing is not a catching up activity since, to begin with, you can hardly talk.