Affection. The fighter is a bit of a workaholic. No time for rest when there's work to do. And is so use to partners loving him and leaving him, stay and make breakfast for him and watch his entire world colapse.
You can't see it well, but the Everburn Blade. Dah'ruk thought it was the coolest thing he's ever seen in the beginning of his journey. It's also the first time he felt genuine joy again after years of doing merc work.