"Thank you, but y'sure there ain't a few reasons y'don't know about?" he says jokingly, trying to cover the slight anxiety buzzing in his guts.

He'd like to have a family, and while he may not admit it openly for several different reasons, he has had thoughts about Kate being the one he can finally start one with.

But, he doesn't want to rush it, doesn't want to inadvertantly do something that will take the chance away, or hope too much for something and jinx it as a result.

He also has personal fears about how well he'd do as a husband and a father.

And so, the joking, and a smile to go with it.