This is a sneak peek from the Fringe episode "Peter." The 4/1/10 episode takes us back in time, as this scene depicts Walter and Nina, discussing William Bell.
Before I met him I didn't think it was possible to love you more. But now, knowing what we've been through and everything we've had, I do. You never liked public displays of affection, or going number two in a public restroom. I remember that, too.