Complex sentence: Later, after being rebuffed by Mai, Sugiyama discovers to his surprise, that his passion for ballroom dance outweighs his infatuation with Mai, and gives him the meaning in life that he was looking for.
Split into simpler sentences: Later, after being rebuffed by Mai, Sugiyama discovers to his surprise, that his passion for ballroom dance outweighs his infatuation with her. Indeed, dancing gives him the meaning in life that he was looking for.