I guess for me, it would depend on why he is discussing it with him. If he thinks talking about your issues will make him a better husband, liking trying to figure out how women think, that sort of thing, or how he can make things better, that would be ok with me.
But if he is just talking to them to bash you, or if he is looking for someone to feel sorry for him or agree with him that he is right when you argue, that would not be ok with me.