I'm certainly no expert on these matters, but it is easier to look objectively at some else's sitch. I think you should stop inviting him over. He'll wonder why, and he'll miss the invites. If your D wants to ask him over for something, then, you can have her ask. That will give him some space to initiate visits, etc. His telling you when would be best to invite is his way of controlling the sitch. If you only invite him when he's already coming over to get D, then he can say yes without cutting into his "free" time. Like my H, he's trying to keep one foot in the door.
I agree with Rusty, the less he knows about your life, the better. Again, makes him wonder! I decided today that I'm going to have to be a little less forthcoming about my whereabouts, etc. They want to know that we aren't moving on without them. They want to know that we'll be here waiting. In some ways, the sex is about that...making sure that he can still have you if he wants...you haven't "gotten over him yet." It also says to me that he's not sure about his decision...wants to make sure before he lets you go. Thinking that you might be losing interest a little might really make him think about what he wants.
Hang in there. I know how tough it is. My H has been gone for 3 and 1/2 weeks, and some days I don't know if I'll make it through the whole day. But, other days are actually almost kind of good! I'll keep checking in on you!
AmyM
Me 39 H 36 S 7 S 4 T 15 M 12 H out 8/1/08 OW confirmed 8/6/08 D final on 6/12/09...I'm doing good!