Silly!

She: We should start talking about deeper stuff, you know, like philosophy and stuff. We talk like a superficial couple..we need more depth...

He: Ok, so do you know where the Mariana Trench is?

She (absentmindedly): I dunno...somewhere in the pacific....err...why?

He: You said you wanted to talk about "deeper stuff".....??

Happy birthday baby! I love the madness that is you!