Feel bad, it's okay. Cry. That's okay, too. Get depressed. Let your tears fall for that person you loved but didn't love you back enough to stay. Drown in your own sea of bad thoughts and hopelessness. Give that person what they deserve; your thoughts and a place in your heart. Because after a while—long or short— you'll forget the color of their eyes, you won't be able to remember the taste of their lips. They'll be gone forever from your head and heart. So make the most the time they are there.