- Billy Sparks: It'll be okay, Sheldon.
- Sheldon Cooper: You don't understand. They're gone, and they're gone forever. And no matter what I do, they're never coming back, so it won't be okay!
- Sheldon Cooper: [Voiceover] I wish I could tell you I realized the cruel irony of what I had just said to Billy and apologized. But I didn't. Like a virus, heartbreak can also spread. Once it does, it's hard to contain. In some cases, you can try to reboot and start over, but it makes you appreciate those early days, when your hard drive was clean, and the world was full of possibility.
- Mary Cooper: So, then, was there no big blow up when he left?
- Brenda Sparks: Not really.
- Mary Cooper: Well, what happened?
- Brenda Sparks: Let's see... we used to be happy. Little by little, we weren't. Then there was bickering, then there was silence, and then... it was over.