[Ouch. Being called a dumbfuck twice in one breath. He must be Katsuki's favourite person right now. But at least that didn't earn him a punch to the face.]

I'm sorry. But I mean it. I know you're strong enough to get through anything, Kacchan. I know that about you more than anyone else. But I just...

[How many times is he going to have to endure Katsuki getting hurt or taken away without being able to do something about it? He doesn't want to live with another regret on his shoulders.]

I'll... try to rely on you and trust you. So long as you do the same with me.

[Let Izuku believe that he can save Katsuki too.]