Don't. [ Waver curls his hands into fists, but he's looking forward at the ground instead of at Reinhardt now. This hits too close to home, and he hates it. ] Don't even talk like that! Don't you know that people would care if you just went and got yourself killed?! It's not... it's not fair!

[ But he understands wanting to do the right thing, wanting to save others even if it's at the expense of yourself. He understands it and that's why he hates it.]

Just accept that you can't go back right now, and be glad for what you already did accomplish!