The Big Bang Theory, Season 5

[Leonard and Amy are sitting alone at their table at a wedding reception]

Amy:
Would you like to dance?

Leonard:
[depressed] No, thank you. I'm not really much of a dancer.

[long pause]

Amy:
Not exactly winning any trophies as a conversationalist either.

Leonard:
I'm sorry. The bride and groom seem happy.

Amy:
Why shouldn't they be? They have a feverish night of socially approved copulation ahead of them. In some cultures, we'd stand outside of their bedroom cheering as they achieved orgasm.

Leonard:
That sounds like a late night, and I have work in the morning.

Amy:
[fed up] Leonard, you may not have noticed, but I am being a delight here. And you're not holding up your end of the evening.

Leonard:
I'm sorry. This wedding just reminds me of my kinda-sorta-girlfriend 9,000 miles away.

Amy:
I have a kinda-sorta-boyfriend who's playing with a model train right now, you don't hear me bitching about it.