Daryl knows he's going to lose from the onset, and that's honestly part of why he does it. They all need a moment to breathe in this stupid war, and why not give this cocksure lady her precious secrecy? If it's really something she wants to keep to herself so bad, he'll let her have it.

Fair's fair don't mean shit when it comes right down to it.

So he looses. That's fine. He's not smiling, doesn't really do that much anymore, but he's got a lighter step to him when he shrugs at her from where he's stopped his horse. "Guess I'll never know."