What are the rules for the not-yet divorced?

I was at a party last week - nothing formal, just a simple Birthday Party filled with about 90% of people I did not know. When it came to "Are you married?"...I froze. Stumped. Crickets chirping. Really, what in the world is my problem? Yes, I am legally married, but we are seperated. How hard is it to say "No, I am seperated."?...more