also u could try not speaking to her, then speaking to Kenneth, he will try to fight her in a duel, then speak to her.
also i noticed a bug - with a trader - i opened th trading menu and i could not press anyhing to buy this really good sword, so i closed it and the guy left, but then the disposition thingy came up. So maybe if i waited, it would have eventually reacted.
Basically try opening the dialogue options and waiting for a bit - go have a cup of coffee. It is a bit of a desperate one though.
Do the Kenneth and Hermosa quests again as i said above.
