Looking for a specific quote from a book...?

I'm looking for a specific quote that I came across awhile ago. I feel like it's from a book but it might be from a movie or show. It's something along the lines of "We met in college where we fell in love in a twin size bed..." It goes on to talk about how they're married now and sleep in a king size bed and there's so much space between them. Literally and figuratively. If someone knows what it's from or knows the exact quote please help! I loved that quote and wished I had written it down when I saw it...