@eris That reminds me of my dog with his crate.
We got him a nice large crate as a puppy and he loved it. Slept in it every night, etc.
Then we discovered it was 2" too large to fly with, so we bought him one that was that much smaller. So, given he was a really small dog, still very generous for him.
He went into it, spent half an hour scratching at it, trying to enlarge his cave, and then walked out, and lay down behind the couch with a disgruntled huff and moved to sleeping on my parents bed.