Yes, I researched a bit about right of entry and got some legal advice when I changed the locks on my H last year. My findings match yours: it wasn't legal that I changed the locks, but he had acted in frightening and threatening ways and if he responded to my changing the locks by angrily breaking in (further frightening and threatening me) it would be very easy to get a non molestation order. I told him that. And in the end we came to an accommodation that suited what I needed. None of that applies to you in your situation, of course, but him snooping on your computer in your private documents is obviously unacceptable. Anxious people often get controlling and overstep their boundaries - my H is the same. I know when I've tried to accommodate it, allowing him his control in the hope of soothing his anxiety, it has only made him more controlling. Not giving AF sounds best. It's almost comic to think of him poking about in your parcels as if your amazon purchases are anything to do with him.
