It seems I'm amusing

Last night at rehearsal we were discussing our characters, their relationships with each other and so on.  B kept laughing at the way I was phrasing things,at one point reacting to something I'd said with "You're funny!"  They all had a good laugh when I said my character was a bit scandalized that her sister E and E's fiance were sleeping together "without benefit of clergy", and I was really surprised that only one of them had ever heard the phrase about someone "going to college to get her MRS".  The others were trying to figure out what kind of Master's degree I was referring to!