You make plans, you talk about your future together and how you both cannot wait for the day to start building it with one another..
Then one day they suddenly realize they're better off without you and you're not good enough, you never were.
They walk away without a second thought and don't even care that you're broken. They feel as though all the time spent with you was nothing more but wasted time.
All of a sudden the words "I don't know what I would do without you" no longer remains a mystery..