Mount & Blade: Warband

Mount & Blade: Warband

Diplomacy
Marry claimiant quest
I put Arwa the Pearled One on the throne of a Sarranids, completed all the prerequesits (low controversy, all land owned by the sarranids, etc) and asked her to marry, she said yes and said she would organize the wedding within the month as i had no family in Calradia. I have had a quest that expires in 100 days called "wed your betroved" and it says she will oragnize the wedding feast. I don't know what to do because the wuest expires in 20 days and she hasn't organized the feast yet, and exery time I talk to her no new options apear. Does anyone have any idea what to do?