It probably says something about both of them: her that she'd find comfort in his presence, him that he can even give it. He doesn't think this is the time to examine it too closely, given that she's clearly distraught. Still, that's one fact given form: Tyrion had been here with her, and now is not.

"I'm surprised you had time to miss me, what with making, having and raising a baby. I'm given to believe it's a lot of work, and little to no rest." She'll probably swat him — physically or verbally — for the comment, but that's a good thing: it means she's not lost all of her fire, and that the clinging is merely a temporary overwhelming.