A little more educated than VP I think! ;)
Hey mimi-moomoo, hope things aren't too bad between the 3 of you. And I hope, without sounding preachy, you've had a bit of a lesson in thinking before you speak and considering your actions a little more before taking them.
As for now, can't you just let gemma know that a joke got out of hand, and that you are as much to blame as evie? Your own pride isn't worth sacrificing friendships for, and if you take a slice of "I-messed-up" pie, gemma and evie will probs respect you more for it, and no harm done. Face it, it's gemma who has to face everyone else having digs at her...
Lots of luck x