With us, it's just the opposite. I use her phone, she uses mine, I get stuff out of her purse, she can get whatever I have out of whatever it is in. Nothing to hide, but we've been together since we were 17 & 15. Everything there is to know about each other, we know. Not trying to brag. That's just how it is. In fact, I'm sure there are some, here, that would disagree with this 'arrangement'.