Ahaha, I didn't even think about Philippe! Now I see that some lines are setting him up as a decoy - for example "The old Vicomtesse de Chagny had high expectations, and both of us had had duty drilled into us since we’d taken our first steps into society" (but on the other hand "Thanks be to Heaven — and MY father’s good sense")

He certainly was coming out as clueless. :DDD But, like, in a cute way, like he was too innocent or too carried away to understand the full implications of the situation.