He is sorry, that he's done this, that instead of handing Wu Xie a tissue he's there to collect his tears that don't number too many - he wasn't expecting much of anything, in any case.

He caps the vial in his hands, and safely tucks it into his sleeve for now. But more importantly, he tells Wu Xie: "Your friends will mourn you, and never forget you. But time will heal them, enough to move forward. You must believe that."