Man, I feel for ya. But unlike the others here, I'm even more concerned about the greater message she's sending here: that she doesn't even WANT to have that time with you.
If scheduled sex -- or even just a formal schedule for some intimate, "us" time -- is supposed to take the edge off of the LD spouse for the week and the day leading up to it all . . . so that they KNOW this will happen, and they can then do what they supposedly really DO want to do . . . then what's with the avoidance and feigned ignorance of the arrangement? And like someone else said, what's with the "Sleep" answer, wtf???
Look, we all know that we can either look for reasons to be together or reasons to avoid each other. Your wife is ONLY looking for reasons to avoid you, and you need to call her on it. My favorite reply at the moment would be: --------------------------------------------------------- And then, with puzzled surprise in her face, she said, "What did you think it meant? That we'd make love?!"