Vile.
I trust my wife, and she trusts me. We trust each other not to ask for stupid brain-poisoning shit that humans weren't meant to have access to that could one day blow up horribly.
I don't have her passwords, she doesn't have mine. Our phones are locked. I could technically see what she's doing online I suppose via traffic snooping in the router logs but the day I feel the urge to do something like that is the day I kill myself for having abandoned basic moral principles.
We're apes, we have brains built for avoiding snakes in tall grass and finding water and berries. You poison yourself with surveillance, you feed your worst and most destructive impulses. Practice keeping secrets, practice being okay with not knowing. Trust isn't surveillance, trust is knowing that if something fucking mattered you'd be told.
edit: I want my wife to be able to break my heart because if she does she'll have a good reason for doing so. That is what trust is.
Therapy would be better for you than a panopticon.
What if your partner wants to run away from you? Do you not trust that they would have a good reason?