Can you cancel proposing?

I actually tried breaking up an engagement one of my sims had by using the rival actions to bring up the option to call off the engagement. Didn't work, the prompt never came up.  Ended badly for my sims actually, lol. Polygamy was committed, one's husband changed genders/went missing, another's husband went missing for a good while and still occasionally mysteriously disappears. My sim I was trying to get out of the engagement ended up divorcing both of her husbands back to back, so after that experience she's probably not going to marry again, lol.