Sour of Abnaxus
Headbutting Jellyfish
Just so you know, he'd still have moved to different spots if you kept trying (unless that spot was the only place with enough space, but I doubt that was the case). Sometimes they just have a tendency to move into a certain spot, but they'll still move around sometimes! I think Bonbon plopped down her house in the same spot 5 times in a row before moving to another spot.
Ugh, I wish I'd kept trying. I just assumed that something had gone wrong, since it was pretty coincidental that he'd put his house in the same exact spot three times in a row (I do have plenty of space for houses). On the start screen, his plot was also visible, so I thought that maybe that was an indication of something.