Sims freeplay iphone relationship

So I'm in the middle of the "Love is in the Air" quest and they just finished watching the movie. Now it's telling me that they should be dating, the only thing is that I was romantic before this mission showed up so they are already passed dating and are partners. How can I make the game read this? Does anybody know how to fix this?

Try making 2 new sims then get them to start dating - these tasks can be done with any sim not the couple you are working on.

Alternatively you could maybe make them fall out and break up, then start again till they date.

Probably quicker to start 2 new sims though, especially if you are going for the time limited bonus.