I'm sorry but when he fall the second hand embarrassment I feel

Yeah, I feel horrible for finding it hilarious. By offering him a hand to alight the carriage, the royal valet was treating Louis like Maetel's girlfriend, and Louis was determined to assert his manliness, only he trips and is swept up like a princess.

Louis was determined not to act like a delicate fair maiden that Maetel needs to look after... only to fall like a delicate fair maiden... that Maetel needs to look after