Interesting theory. In my case, we have one car, and she needs it to get around (things are pretty far-flung here), so she drives me to work, which makes it a good thing that I work only about 3.5 km from our house. So she drives me there and picks me up. A side-note: this makes me a virtual prisoner, as work and home are pretty much the only places I get to go most days. Anyway, when we arrive where I work, we kiss goodbye, but it's a really formal ritualized thing. We kiss on the lips, and we both lean towards each other to do it. Three smacks, that's the norm. No kiss "hello" when she picks me up. We kiss "goodnight" at bedtime, and it's the same deal - we both participate, and it's the same, formal, ritualized thing. In fact, even our ML has become very ritualized. She's LD, I'm HD. (as most here already know).