[ Chisaki's eyes rise from where he was signing his name, fixing on Kurogiri's face. Listening to the unexpected confession, his eyebrows twitching up very slightly in surprise.

This talk of "technically true" has him thinking about the Boss. How someone from the outside might view Chisaki's actions as a betrayal. But— ]

Was your intent to betray? If not, then other people's judgments are inconsequential. Only you know what was in your heart.