Just out of curiosity...do you normally go to bed without acknowledging your H? My H has done that a few times to me...and well, I found that to be quite rude. It was as if he simply dismissed me....I viewed it as though he was acting like I wasn't even there. Honestly, it really offended me. I felt totally ignored when he'd do that.
I've since discussed that with him and he no longer does that...he at the very least lets me know he's going to bed.
Anyway...it's very possible (and I'm just taking a stab here) that you might have gotten that kiss because you showed some consideration to him as well. Something as simple as saying goodnight, and acknowledging someone can go a long way.
