Yukio has never been put in his place before. One of his students came out of nowhere, kicked his ass, and then chewed him out for the hypocrisy of everyone, including him, hating his brother. It was quite a shocking morning and he needed to take a long lunch to process it.

You're a hybrid yourself so you were familiar with the hate he and his brother potentially faced however you were shocked that Rin was the only one isolated. Who knew putting him in his place would make him fall for you?