Spoiler: The Arbor endings

A question, and something that spoils what happens at Arbor if you solve the mystery of the Rosers.

Any one of the three ladies that may accompany you (the Injurious Princess, the Duchess and the Widow) can become an Ambassador for Arbor?

I am also interested in hearing the reasoning of others: did any of you take the jump and got themselves nominated?
Given the state of a citizen you can meet, I thought… not