I think your current game is kaput unless an island event occurs where an outsider of the opposite sex joins your village (I had an odd boy join my village and when he grew up he was the hardest working one of them all).
For the future, you can put your partner's game on pause and reverse time travel back to the time you legitimately would have come back to your game, presumably the current date and time.
If you have a second computer you can install VV2 on that computer so that your partner won't interfere at all. Go the FAQ at BigFishGames. In their FAQ they permit you to install it up to five times and give instructions.
Lastly it may be a good idea for you to backup your village so that if you inadvertently start the game and all your hard work is gone, you can restore your game, reset the clock to the real time, and if you start the game I believe things will be ok.
I am not certain about the political correctness of suggesting a person back up their game or explaining where the save files are and so forth. If backups were ok, there would likely be a save and restore feature already built into the game, which would essentially allow adverse events to be undone, which is not in the spirit of the game. However, a person in your situation is unique.
LadyCFII, guide us?
