"Look. you mean a lot to me. Way more than those other idiots." Was all he could say.

Sure, you were only a member to the league, or that's what he thought at least. You were one of the earliest members who had joined earlier than Toga and Dabi.

Meaning, he pretty much knew to trust you. And he does, but more than he should. "You actually think and do it smart. I have my trust in you." The guy trusts you with almost everything, as if you were the most loyal, and you were.

Of course you meant a lot to him, again... more than you should've. He would in sist and brag to Kurogiri, you're just a loyal member that he thanks and is grateful for.

“Just... when you're out there, be careful. I can't afford you getting hurt or anything." But pretty much it seems he treats you differently than the others. Concerning to himself? Yes, it is. Does he know why he acts this way around you? No, he doesn't.