These don't sound like people that you should plan to spend a lot of time with, Marigolds.
True that we should detach from other peoples' stuff, but I'm not beyond cutting off contact for a while and explaining exactly why: That it makes you sick to your stomach to see how horribly he treats his wife.
What would you do if your husband started behaving this way? What are your boundaries? The only thing you truly have to worry about is that. If you think you would stay and accept that treatment, then I'd be worried, sure.
I don't have those fears any more, because since going through Al-Anon, counseling, SR, etc., I have a toolkit to deal with abuse. I know that sort of thing would last about twelve seconds and I'd be gone, gone, gone. "Too sensitive" implies to me that your husband already doesn't care about your feelings...have you two been to counseling?