[When Izuku's head is tugged down to rest Izuku's eyes widen in shock for a moment. But the seconds seem different as they tick by. He feels this lingering sense of vulnerability beginning between them and he doesn't know what to make of it. Katsuki is being so honest. He's making promises that Izuku is never going to want him to take back. Because it'll end a part of Izuku that he will never get back if Katsuki does.

He tries to hold in a small sob. His eyes water more as he rests his forehead on Katsuki's chest and tries to breathe.]

I don't want you to hate yourself, Kacchan. I- I know those days are long behind us... I just...

[He is terrified of things going back to how they were. Of Katsuki changing his mind.]

I don't want to ruin what we've already started to fix. If I can... have this friendship. I want to hold onto it for as long as I can.