Finding Butter in Arx actually made me sadder than any other part of the game.

It's said if you court Butter and have 100 rep with her she'll help you with the fight with Griff but haven't found that to be the case. If you stand up to Griff and do not give up Stingtail she joins with Griff.

I didn't know about the trade button on the dialogue box until someone mentioned it here, holy cow, i've completed this game twice

"I couldn't let them kill you, that would be awful!"

So said Butter, if you succeeded in courting her, after helping you in the battle with Griff and crew. After all that, Larian never followed up on that reunion meeting in Arx. Huge disappointment.

500xp if you kill her in griff's camp, i don't remember what you get when you find her body later. i'm loathe to let her live this time, but i can still pick her pockets and recoup up to a little over 6000 gold. i'll report back on xp/items when i find her corpse so it's documented.