people looking you up on facebook

OK so I'm not too sure what to make of this.

So I've just recently started a facebook account. More so for the reason one of my girlfirends was only limited to 17 pictres to upload onto her Myspace account. She didn't quite like it.
SO i'm enjoying finding friends. OR them finding me.

So I just got a message. From a name I quite didn't regonize. SO I open the message and all I see is " R U married to Chris???"

Wondering Who would know that.

SO I go looking at her account and realize SHE works with CHris. is a level higher at the dealership than him.she is also dating/common law/engaged/married to an SPOILED ASSWIPE chris has the priviledge to work under.

BUT my thing is. WE dont have a common last name. Actually Its pretty Fucking in my mind. POLISH people would think otherwise.

BUT my thing is WHY is she looking up his last name???? IS she tring to see if he has a facebook account with porn on it or something. Daily rants of what a spoiled ass wipe of a man she is with???

SO I sit here confused on HOW to answer back. a simple yes. Is she gonna request to be a friend. cuz i sure dont want to.