Is he over it?

I posted in another forum, I think it was the wrong one, so here we go.
Guy friend and I had feelings, work together, cant be more than friends, just absolutely cant. I am the type that needs to talk to him everyday or I feel inscure. WHen I feel insecure, I tell him what he should be doing. Sometimes he will step up, like when I said I wanted to have him initiate calls, he did, then kinda stopped. He always answered when I called, when he was in a meeting, even going to the bathroom, lol I told him to stop answering then, but he always did anyway. Then suddenly, he stopped when he was busy, I would have to call like 2 times before he returned my call, so the cycle starts as I feel like im being ghosted. WHen I call him out and ask if he just wants to stop being such close friends, he says no. I guess I just dont get why he cant put more effort into me? Does it seem like he doesnt care? If I left it up to him to call me, it would take several days. Im afraid of the no contact rule because im afraid he will just take it as an opportunity, so Id like insights on whether I should see that he wants the opportunity. I drive him crazy with my neurotic ” did something change, why dont you call me” weekly thing, and he tells me then apologizes and we’re good again. So to break the cycle, I dont know what to do.