I think like with the other companions he should at least have a default decision without the MC's input, as I'm sure others have said. If he was allowed to make his own choice imo there's no way he wouldn't choose to save his father over himself. I've always told him to end the deal but I don't believe it's what he would choose on his own, and I think it would make more sense as a persuasion option. Then again maybe this is an intentional characterization decision for him? That he's so unsure of what to do in the moment that he in a sense lets someone else choose for him, or at least follows whatever advice they offer.