You guys were arguing. It's been going on all day and then the two of you just exploded. Shouting back and forth about the stupidest shit. When you snapped. "Shoto Todoroki!"

His jaw tenses. There's this pause— cold, still. He doesn't shout back. Doesn't flinch. But now his voice has zero warmth. You reminded him of his father.

"If that's where we're at, then maybe we should take a break and talk later."

You just hit him with Endeavor-level energy and it lit a fuel to his restraint. He walks out— not to run away, but because he knows if he stays, he might say something he'll regret.