Re: So what do you do if husband doesn't like your hijab
I guess the mistake started if the girl wore hijab before marriage and he initially accepted that. If it is something that happened after marriage, then maybe the guy should try to walk in her shoes a little and learn about her views from any groups she is affiliated with. It also depends on how much purdah she does. Does she continue a state of purdah even at home and around in laws? I know several couples where the wife does nikaab and does not remove the nikaab even for brother in law or father in law. That can also complicate situations and if they are living in an extended family situation, it may just be better to move out.
I am sorry I cant comment too much on the religious aspect as I do not consider myself knowledgable enough to provide commentary on that angle.