Quests \"High Stakes\" and \"Wild Prophet\" (GreedFall)

In general, what a hitch. Out of stupidity, I practically completed the Thelema quest line, we need to decide what to do with Matheus's cave. I want to knock out an option for the primate to tell about the cave, but my charisma is low - I didn’t swing, only a cloak + 1
Ok, I think I’ll go through the Petrus branch ... And there, just in the second task, you need to talk with the primate at the end, but when I come up , the dialog about the cave starts automatically. Actually, is there, in principle, the possibility of choosing a dialogue branch, what to start a conversation about?