The Awful Truth

I was cleaning my room last weekend, and came upon a stash of old books. One of them is 'He's Just Not That Into You'. I remembered the day my girlfriend and I bought it, right after we saw its movie adaptation. Somebody told us that the book is ten times better than the movie itself.
There is an excerpt in the book that particularly stepped out of the book, grabbed the book, and slapped me right across my face. It said;
"If he doesn't give a crap, it's because he really, really doesn't give a crap."
Or something like that. Dude, I can't memorize every single word!
I suddenly recalled an event when my friend was seeing a guy, but they were not officially dating, but she thought he really liked her, but she wasn't too sure, especially when he called her only once every three days. "Oh, you know, he's probably just busy. I'm sure he really likes you." I said to her.
I wish I can go back to that time and douse myself on fire. What fiction!

Lesson: We should stop reading things 'between the lines'. What lines?