Well, your question was what would I do...

In the "before" part when he came to see you, I would have discounted how long I've been hunting the spot, explain that he put a stand really close to mine and ask if he wouldn't mind not hunting his stand while I'm in mine. More along the lines of what MilDot had to say.

If he didn't go along with that, well then I'd just have to find a way to work around it myself. If he's that much of an ah@le, I don't wanna be hunting anywhere near him.

Now though? I'd simply call him, tell him that I'm sorry we had a disagreement, I hope to see him in the woods when I'm out there (oh and by the way, this is when I'm usually there) and leave it at that.