"I'm not quite sure about any of this, but I think we're supposed to do that in front of Carissa, possibly even if we're not fighting it out. It may not be a matter of winning if we're not fighting, but it's the process that decides who controls her, and that open question in her mind should be resolved to close out the" reaction-binding-site "target shape that a 'trope' might hook itself into, at least if Carissa can act as a" viewpoint-character "thing that a 'trope' thinks has questions."
"Also that would be more romantic in dath ilan, unless it's different in Golarion."
Also there is a chance that something goes weirdly wrong during the negotiation, and then while they are all probably doomed, they may still be less doomed if Isidre and Lrilatha are right there.