Unfortunately, He is partially right, especially when are patients and other people see us as he does, maids and housekeepers. Logic tells us that this is not so! Otherwise, very ill patients would be checked in to a Holiday Inn, not in to the hospital. In many cases, you dont just get respect because of the fact that you are a nurse, you have to earn it by proving (repeatedly) that you are a knowledgeable asset to your profession.
Throught history, nurses have fought the maid-housekeeper stigma. It is improving, but there is still a lot of room for more. Make yourself known, you have a lot of knowledge, share it with EVERYONE. Never let yourself be treated like a maid, you know that you are more than that, and you have to prove to others that you are more than that. I know that it is tough to have to prove yourself, and not to just be excepted as a knowing professional, but thats the way it is, and can be rough.
Just remember that you are not alone, and we are all working to change this stigma! If you dont act like a housekeeper, people are a lot less likely to think that is all you are.
ps, he is your husband, kick him in the tush and remind him that you need his support, not hinderance and critique!