PMS makes me Bitchy

Every girl knows, every man dredges it. It's PMS. Sometimes it hits early, sometimes it hits late. Sometimes I'm an emotional tornado, other times I'm fine.
F, and just about everybody, is extra irritating at this time. The littlest things set me off.
For instance. F wants to go to this event and invite Second Eldest and her Man. He's been talking about it for over a week. However, did F do any of the research needed in aiding the decision to attend the event? Why no. So what follows is the conversation we had:

"Can you look it up?"

"You didn't look into it?"

"No. So will you look it up? After all, you just sit at a computer all day." (that trips my trigger every time.)

"You've been talking about this all week, why didn't you look into it?"(I'm starting to steam.)

"I don't know. Just look it up, I can hear you typing at your computer now." (It's called multi-tasking, you should try it sometime!)

"No, look it up when you get home."

"Fine."

"Fine."

So tell me, is this a guy thing? Every time I see an event that I want to attend I look into. Cost, time, location. I print stuff out, map it, whatever.

When he sees an event he wants us to attend? He asks me to do all the leg work. While at work. Even though we have the Internet, at home.

GRRRRRRRR.