My usual course of action is often to kill those who leave my RPs. But her getting captured and then dying could work. Actually, I think I might know how to make that work. Especially since her character was meant to have been there with Dwyer and Zaiden before some of the others, and thus would impact them on some level (Dwyer would definitly be more expressive about it than Zaiden, though, but Dwyer's also more likely to try and still remain optimistic).