I've been feeling a little down lately

Mainly, things have been rough with David. There has been much discord in our little flat. I even spent the night away with a friend last week (Though it wasn't all that dramatic, since he drove me there and all. But still, I didn't speak to him in the car.), but when I showed up at work the next day at 7:30, he was standing outside the deli smoking a cigarette and saying he was sorry. Then he worked in the deli, apron and all, for an hour to make up for it. We seem to have a pattern of A) David saying something stupid, B) Me getting upset, C) Both of us shouting and/or loudly ignoring each other, D) David apologizing and doing something very, very nice. Last night it was cleaning the apartment. The ENTIRE apartment. I sat and watched television, and didn't even notice at first what he was doing, until I saw him on his knees scrubbing the toilet. Without any kind of pleading or nagging on my part. At all. He just up and did it. I walked around and the place was spotless, and he was vacuuming the floor and sweating and looking pleased with himself. I nearly cried. A man has never, never done something like that for me. Flowers, yes (though he got me those too at one point), little gifties, yes, a variety of aimed-to-melt-an-ice-princess compliments, yes. But cleaning my house? Just, you know, because? A first for me.