I continued to try talking to Del, hoping that he will change his mind about moving. Still no luck, though.
Katie was in my town, and her mother was in TZ’s town Hyrule. So TZ opened her gate so I could take Katie home.
I didn’t stay long in TZ’s town, but I did check out her obstacle course/maze. It was very, very pink, but had a similar layout to my own maze.
I returned home to Forest and enjoyed the northern lights (aurora borealis).