She does. Maybe there are another triggers for her "ship jumping", but I found only these 2.
I had 189 after finishing the game. 200 probably possible, but you have to be a complete asshole and always choose the most evil options. I didn't kill Lilly, slime queen, scorpion girls, harpies and alraune. Went for a pragmatic villainy type because killing all the potential allies could bite me in the ass in the strategy sections. And it's also suitable for role playing a misanthrope. After all, Celeste was betrayed by humans, so there's no reason to be a jerk to everyone else.