How I Met Your Mother, Season 8

[Robin has read the play entitled "The Robin" and sees Barney]

Robin:
Seriously, Barney? Even you, even someone as CERTIFIABLY INSANE as you must realize that this is too far! You lied to me, manipulated me for weeks - do you really think I could ever kiss you after that? Do you really think I could ever trust you after that? [refers to Playbook page] This, this is proof of why we don't work, why we'll never work, so thank you. You've set me free because how could I be with a man who thinks that this trick, this enormous lie could ever make me want to date him again?

Barney:
Turn it over. [Robin flips page to read Step 16: Hope she says yes. Barney presents ring] Robin Scherbatsky, will you marry me?

Robin:
Yes.