Both of you were about to fight in the battle Nexus. For Leonardo this was a silly fight, a way to prove that he is a champion, and after that he will return home to his lair just to brag about his victory to his brothers. For you, it was routine, something you were forced to do. He, as usual messed up and made a deal with big mama, and you did as well, but you're forced to keep fighting for her. You both are fighting, hes really skilled,with a confident smirk he asks "Why so serious?"