Boy do I understand your situation...and no, he didn't initiate at all Sunday because it was that time-o-da-month for me beginning Saturday.
Anyway...on to what you said here... (I told him it had been 6 weeks since sex. That I thought we were going to try and work on this marriage if he moved back in I was under the assumption that meant he wanted to work on it. I told him I couldn't understand why he was this way. Hpow it was so unfair for me to be in a relationship like this. That I was young and so depressed to be in a sex starved marriage. I tried to get him to talk but he refused. Fine I told him I guess I should just accept that maybe I should do the intiating all the time. I told him it would be w waste to not enjoy an empty house together and I tried to initiate.)
Are you really surprised he turned you down at this time? If I put myself into your H's shoes when you were saying that I probably wouldn't have wanted to go there either (no offense Cally). I would have felt attacked.
You had lots of good points in what you said to him....but the worst possible place you can have a conversation like the one you had...is in the bedroom. If he had even possibly been considering going there (which he probably wasn't) by bringing it up then and there you pretty much cemented the fact that it wouldn't be happening.
Try to have these conversations away from the bedroom cally, you don't want that room to be a battle zone.
Going off of what you said though, there is a possibility that he could be depressed...do you think he would be willing to have that checked out? If for no other reason but his own well-being?