[It's true that at the time, it was awful. And even now, it's a lot for Minato to process. But he's grown a lot since then. He understands even better than he did back then, and with every day, he feels as though he understands a bit better.

If he had a regret (and he doesn't), it would just be that he wasn't able to do what his mother had been so happy to see--that he wasn't able to live longer for her.

But he made his choices, and he doesn't regret that.

So, quietly:]

I'm okay now--but thank you, Midoriya-kun. I do feel a bit better now that I've shared... I hope that you do too, even if just a little.