I was playing a couple and I wanted them to be finally married, I set up a party and had a wedding arch.  I said "get married" but their visitors took  too long to be seated so I canceled the "get married" just to have the guests be seated first.  Well my female sim cried?!  She bawled like a baby and I was shocked.  it never happened to my other sims before.
I have FT, nightlife, and seasons installed.
here's a pic, but I don't know if it's the one where she cried because I didn't think of taking a snapshot of it, I was too busy laughing.  But they still got married anyway.:happy8:

