After the "level" with that psycho bitch, this is where he understands that the term conquering (normally a Dating/Eroge Game term) means something COMPLETELY different and stops treating his situation like he's in an eroge and more properly that he;s in a survival mystery game. While there's plenty of sexual attempts (made by others, not him), he keeps it in his pants and understands the rules of the game. He redeems himself, but still resorts to underhanded trickery to unveil the real wickedness.
Not trying to get you to change your mind (like I said you were right: Major dick move right there), just saying too soon to judge him is all.