Okay, now I see what you did. Thanks for explaining. You stood your ground. How did it feel to stand your ground? I hope it gave you the confidence you will need when packing up his stuff and being there when he returns Sunday. One question...did he say that he was going to put in a change of address so that he gets his mail elsewhere? That would save a lot of time and aggravation all of the way around for the both of you since he claims that your place is a distance from his work site.
I guess he needed the bike for transportation these days. I'm "assuming" the lawyer said it was okay for him to remove it from the property? Is your name on the title and insurance?
I do think that by remaining calm and not discussing the relationship today was a huge step in the right direction for you.
If you can remain calm and collected on Sunday, then there is nothing more you can do differently. Continue being friendly and if he speaks to you, talk to him. I wouldn't attempt to chat him up too much because he may be on edge waiting for you to talk about the relationship. Best to keep to topics such as work, the weather and the dogs.
Sometimes, they come in to see if you have done anything different, i.e., like rearranging the furniture, new curtains/blinds, paint and if you have removed family photos or favorite photos and replaced them with new ones. It's called curiosity. Sometimes, they just like to come in and take a look around to "stamp" that memory into their brain for when they leave they have something to remember about their past life. Sometimes they use the bathroom and while in there, check to see if anything new has appeared, such as a new toothbrush, toothpaste, razor, etc...which could be an indicator of someone else being in the home that is actually not a member of the family. It all depends upon the person and their personality as to why they do such things. I know my xh use to come to my home and just sit for hours while I was at work. He never left anything behind when he left. The only way that I knew he had been here was because the neighbor saw him enter and leave empty handed.
As for the spare fob for the motorcycle, I thought it was interesting that he remembered to get it since he had forgotten his license several weeks ago (which was a more important item to remember). My xh left his truck fob and it didn't dawn on him until I agreed to the one visit to the home to get the rest of his personal stuff. Now, keep in mind, he had been in the house dozens of time pre-visit and never took it. He acted like a complete nut when I suggested he give me the garage door opener in exchange for the key fob. The deputy who had arrived w/him thought that was a great exchange. Had it not been for the deputy, I imagine he wouldn't have given me the opener...but I had already planned to change out the code if I didn't get it back. In the end, he left w/just a few things since he had already gotten all of his personal items previously and that one infamous key fob. He was never allowed back here after that visit.
Now, you understand a bit more as to why I made the comments about coming in the house and looking around and the key fob.
Again, I do think that if you can remain calm and not get upset and take his bait to argue, things should go fairly well on Sunday. If he texts you between now and then, only respond if you think it is necessary and take some time to think about your responses before you post to him. If it helps, come here to get some "pearls of wisdom" on responses.
BTW, I apologize if I was too blunt w/you. I do not want to see him take advantage of you.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.