K. K? K what? The letter before L, the letter after J? Did you know that in JK, K stands for "Kidding"? Or K as in Potassium? Do you need some Special K for breakfast? K, as in I can K/O you? Can I knock you out and feed you to hungry sharks? Sharks has K in it.
If a girl understands your bulls**t, sticks through your mistakes, and even smiles when you've done nothing for her - it's obvious she's a keeper. But it's also obvious you don't deserve her.