Him: I'm over her.
Her: <laughs> You're over her. Stop lying to yourself. Seriously? It took you, what, few weeks to get over the girl you swore was the love of your life, a few stinking weeks to write off the girl you've been with for a year! You were in love with her years before you even got the balls to ask her out.
Remember the nights you swore to me, "Never again! She doesn't even deserve my love!" and the mornings after those nights where you woke me up with phone calls of, "I love her so much it hurts!", and finally that one day when she said she liked you too? That was the happiest I've ever seen you.
Remember all those times she made you laugh so much your jaws hurt the next day, the times you walked her to school even though you had to wake up an hour earlier just to do so, and the times you missed her so much you wound up on my doorstep, holding out a bottle of tequila, begging to drink the misery away when you hated the taste of alcohol?
A love like that doesn't die easily. If it does, then there's no hope for the rest of us.