Ok, to answer the question
That battle is to protect your mind and save your life, if you lose the battle, your mind will be destroyed completely without any chance to recovery and you would fall into SCS hands.
You may see the effect of the will lost as losing, but that actually made the MC to get through this. What Max does on that evening was reckless and totally stupid, risking the MC's mind completely. Anyone else would have lost it (he was intending to do this to Luke instead of the MC)
But I agree it could have been an standard sex encounter, since the mechanic of that mission was already different. Heh, I guess I made it more difficult than I should have. I'm noting this feedback for the Ursus storyline I'm doing.