"Mm. Perhaps you could have asked Luke to blurt it out." There is a wry expression to her face, although her words aren't said in callousness or to harm. Rather, teasingly. "I can't blame you. Were I to run across my grandparents I would likely act the same. Hard to say, hi, grandma, it's me, especially when the person has no idea who you are, or has even had a child to begin with."