When it comes to being in a committed relationship, how important is open honesty & trust to you? For instance, would you want to know your partners passwords to social media, financial accounts, etc.,etc. If you didn't know those things and your partner refused to share them, would that be a deal breaker?
I think there is a difference between willingness to share and demanding to know. My late partner had a business and a web-site. She used the site for financial info and even e-mails. I didn't care about anything on the site as it was her business. She would have shared if I asked, but I didn't. However, after she died a lot of important information was on that site and it as a real pain in getting it. You never know.
I see openess and honesty is critical in a committed relationship and that applies to both parties.