Future Ted: [v.o.] Kids, as long as I'd known your Uncle Barney, he'd always had some pretty strong opinions on relationships.
[flashback to Ted with a woman and the gang at MacLaren's:]
Barney: Your girlfriend? She's your "girlfriend"? She's a girl, and a friend? How is... Do not humanize the enemy, Ted. But nice to meet you, Barney Stinson.
Future Ted: And yet, in the fall of 2009, he was the one with the girlfriend.
[the gang in the apartment:]
Barney: Go ahead, open it. Open it, open it, open it, open it! It's my porn collection! Just kidding. That would be weird.
Ted: It's your porn collection.
Barney: It's my porn collection! I'm giving you my porn. Now that things are so great with Robin, I don't need it anymore.
Lily: Wow. You are voluntarily... [Barney nods, Robin shakes her head] giving up your porn.