This is something Perv does and I used to have to be careful with myself. I'm better now as my feelings for him are gone.
The longer I go without contacting him, the more little bits of messages I get. And I can't even go to the mailbox without him or DD asking what I was doing-yet if I try to be nearby I am ignored, by both.
I've heard of a term relative to this called "hoovering" but am not sure if it's the right one.
What it boils down to is information-seeking, I believe, especially if you got zero reply from the text you sent. I would think someone wanting to continue or renew an R would reciprocate in some way, even a small one, rather than ignoring, which is a turn off in any case.
My gut reaction to your description, unfortunately, is that he may be like I said an info-seeking about you and perhaps a little bit of game playing, even if he doesn't mean it conscionsly.
Perv/HP still does things at the house once in a blue moon, but it's to alleviate his guilt and he can go along to OW's and think he saved our butts and is big man for helping us out. I don't ask him anymore but sometimes he'll do things that he used to-or it may also be programmed in their heads that such and such chore needs to be done at various times of the year.
It's my thought to be very cautious on asking WH to do stuff, too, but that's you're call...for me, it's very big in my mind that I don't want him sitting on that high horse complaining to people about me. He's done that for a long time already!
It is noticed often, from some friends of mine in the BS situation, that their WH's notice when they dress up too or appear to be moving on-this is an interest that life may actually be going without them and that's not easy for them, even if they chose to go. I'm sorry to generalize and was trying to put it in the aspect of some people I know who had this happen, and myself, and hope that's okay to write.
"When I wouldn't give it up he said he had to go." This is interesting, because the minute you put pressure on him, he was out the door... if I read that right.