I feel your pain. I had Rocket in my village, and I couldn't wait to get rid of her. Now I've reached the threshold of cycled villagers, so she is hanging around my main street all day.
i've never ever plot reseted, so i feel your pain. i guess the quickest way for her to move out is to build a friendship with her (usually works for me) or use amiibos
This is like, the most common thing that happens to everyone. We all have that villager that did that. And worst of all, they never even move away. ACNL loves screwing with us like that >.<