I voted other because I am wondering the same as Antipova.. Did he do it because he just wanted to make you mad and knew it would?
If my boyfriend were to ever call me that, I'd be taken back and confused. I'd say? Are you effing serious? Do you seriously believe that?
then I'd wait for the answer.
I know sometimes things can be said in the heat of an arguement so it would really depend on his answer after I asked that. If he truly thought I was, then he can go to .. well, you know.
If he said no, then I'd be like, "alright well apologize then because thats effing rude". Then I'd hold a little grudge for an hour or so.