[Nodding, that's a fair statement from her, and he stops to think of how he wants to put this. He knows the answer, it's really as plain as day, but he doesn't want to say the wrong thing here and make matters worse.]

It's true that the thrill of battle is something I value above everything else. But...I don't want that to be a reason why I lose someone who is priceless to me.

[Because that's the only direction you can go at that point. He'd continue to hurt Yoimiya over and over if he's constantly putting fighting before her.]

I want it to be something we can share together, not something that pushes us apart. That was neither the time or the place for it, and in the future I won't let that happen a second time. I'm sorry. I won't make the same mistake again.