Here's my favorite line from the movie, While You Were Sleeping, it gets me every time:
Do you believe in love at first sight? Nah, I betcha don't, you're probably too sensible for that. Or have you ever, like, seen somebody? And you knew that, if only that person *really* knew you, they would, well, they would of course dump the perfect model that they were with, and realize that YOU were the one that they wanted to, just, grow old with. Have you ever fallen in love with someone you haven't even talked to? Have you ever been so alone you spend the night confusing a man in a coma?