"Sorry... for everything." It's probably the last time he'll get the chance to say it. He needs to say it before he's forced to take it to the grave - not literally, of course since he won't have a grave. Most likely he'll be Croat dinner before the day is done, if not the Croats then definitely hellhounds or some other flesh-eating nasty.
He lifts a bloodied hand to touch her cheek tenderly. Sorry about the blood smudge, Anna. The bloodied look doesn't suit you.
"I don't deserve your forgiveness. The things I did... I'm sorry."