Sheldon Cooper: Are you having an allergic reaction to my boutonniere?
Leonard Hofstadter: No. I’m just so happy for you. And for me. After today, you are officially… and, more important, legally… Amy’s problem.
Sheldon Cooper: Don’t be silly, Leonard. I will always be your problem.
From The Big Bang Theory – Season 11 Episode 24: ‘The Bow Tie Asymmetry’ (11×24)