turning the game off with out saving will only make it like you didn't do anything as once you load the game up it saves all that happen when your not on examples: say if you don't play the game of more then a week are so then most likey a villager will have moved out are is in boxes so try TT'ing back to the day you stopped playing and it will be as if noting happened
and yes when TT'ing or having a new villager move into town if you have 9 or 10 villagers then one villager will want to move out that's just how they are so if you don't want to lose a villager talk to all and watch for one to ping to move out one may ont ping today but if 3days goes by with no villager pings try talking to all villagers until they tell you who it thinking about moving out of town
I hope that helps ^.^