Confronting never seems to work, it just makes them angry, and you're right about the snooping thing, that creates a huge rift - best not to do it at all. I don't think anyone on here really needs to snoop, we all know when an EA/PA starts by their behaviors. They all act the same, like there's some rule book out there.
I also ask... what was she missing? Is she willing to talk to you about anything, or is she emotionally closed off? (Not suggesting R talk here, just wondering if you know what and where it went wrong) More info please.