Should husband/wife/partner be entitled to access your email or social media account?
For me they could be entitled to access but not necessarily have control over your accounts. It's just a sense of transparency but not necessarily meant to meddle with one's business. There should be privacy at some point, but what's wrong is when you are keeping secrets that's why you are not open to being transparent. This could lead to fights or arguments which of course should be avoided instead being prompted.