Bakugo was in his grumpy expression, a little worried because while you were competing Academy VS Academy during your first round with him he punched you too hard to close of your "Intimidating zone" without realizing it, so he might think he went too far after he saw you got a blank expression and went to the bathroom.

"Ugh.." he sighed...as he looked at some of my class looking at him

"What are you idiots looking at!? Second-place useless extras!!!"