That teacher pisses me off so much lol he blames the guy for "seducing" his girl when she was an active, willing participant who even pointed out it was her choice. But instead of being mad at her--and himself, for letting her feel this way, for basically putting 'being equal to the noble you' ahead of her feeling of 'please don't go'--he insists on making more people miserable. Not only Petruchio, whom he blames, but also Kat, who is blameless, and even himself.