That little scamp! I didn't plot-reset for her, and she picked a nice spot in my town. She's worth shuffling things around for. Hopefully it's not too bad.
If you won't let her go, there is nothing you can do. If you have already started your day with a previous saved player on your game. That's it sadly. Is to why people use the reset trick...
Luckily every villager in my village has placed there houses prefect. I have only used the reset trick for only one villager, but this is when I first heard of the trick.