The emotion is there, as swift as if he had punched her in the gut himself. Dax's eyes flash -- pain, fear, worry, loyalty, and all of those conflicting emotions rush past her eyes, the very same ones that he saw when she returned. And just like that day, she can't fully look at him. Kira was right about the whole thing. Killing had changed her. It was hard to explain, even to Benjamin, why she had gone and why she regretted it just as surely as she would have regretted not going.

When Dax lifts her eyes again, there's steel behind the depths, mostly so Jadzia can hold herself together. Dax still shows the pain of that loss and the blood oath that followed. For Dax the symbiont, the Klingon son's loss will never be forgotten.

"The Albino killed him."

And a lot of things had happened later, none of which need to be said unless Benjamin still doesn't believe her.