I have trouble believing the never part. There was definitely a point where the relationship became completely fractured. Frankly, it looks to me that it happened when Mulugheta refused to even look at the offer that Jerry and Micah had a handshake agreement to do. Jerry thought he and Parsons had reached a fair agreement that would have made Micah the highest-paid defensive player, but Mulugheta wouldn't consider it because the Joneses never negotiated with him. Parsons then listened to his agent and said the Joneses would have to go through Mulugheta. That's when both Stephen and Jerry started bad-mouthing his agent and ultimately Parsons, with Stephen saying that the player has to want to make a deal, which appeared to tick off Parsons.
I believe when Jerry and Micah talked in the spring, they both wanted to get a deal done, but by camp, it was clear that both sides were frustrated and let it spill over, the Joneses in the comments that they made and Micah in his behavior. Now, there was info that Parsons and his agent tried to go to Jerry at the last minute before the trade to work something out so he could stay, but Jerry wasn't interested at that point. Of course, Mulugheta may have been asking to scrap everything and start over, which essentially is the same as saying trade him. There's no indication that he ever tried to use what Jerry had offered as a starting point. There was no counteroffer, just I'm the agent, so forget whatever deal you thought you had worked out and let's talk. And by then, Jerry probably had moved on to finding out what all he could get for Parsons.