Funny Isaac Conversation, Part 1,209

So last Sunday Isaac and I ran to Lowes to get some parts to finish up Pistachio's closet.  On the way we had the following conversation:

ISAAC: Daddy, I love you.

ME: Oh, I love you too buddy.

ISAAC: I love you more.

ME: No way, I love you much more.

ISAAC: Nope, I love you much, much, much, much more.

ME: Isaac, I have been both a kid and a parent and I know how much I love Nanna and P-Pa. Trust me, you love your kids more than they love you.

ISAAC [after a long pause]: Well, I love you more than you love Nanna/P-Pa.

What do you say after that?