Unreal kimmydawn! That's just what you don't need!

I have to agree with the other posters advice on confronting your future SIL and at least let him know you heard it all.
I too am not good at confrontations but this would be a time where I would feel warrant to say something. If I was stupid enough to get caught in such an ignorant situation, then I deserve the humiliation of knowing how insensitive I was. Of course I would never be so judge mental in the first place.

Sometimes people just don't think. Sometimes people say stupid things and need to hear that what they said was ill received.

I hope your feeling better