Here's my guess on what the e-mail was:
Friends and Family,
I simply could not be more tired of your bullshit. Family first....the Ireland planning is an unmitigated disaster. You people never listen, and we have the same issues every time. Mom, Dad, do you really want to share a room? Because, if you do not mind all of Ireland hearing you fight every day, then I suppose this is a good idea.
Now, my "friends". You people basically out and out suck, I've really grown tired of the lot of you. Why can't you be more like my interference friends? They support me and ignore/encourage my guinness addiction. They don't interfere. With an intervention. Twice. You bastards.
-Kat
I have read this twice now, and can see how maybe everyone did not see the humor in it.