I'll just quote a song from Kelly Clarkson here.
"Seems like just yesterday, you were a part of me. I used to stand so tall, I used to be so strong. Your arms around me tight, everything it felt so right. Unbreakable, like nothing could go wrong. Now I can't breathe, no I can't sleep. I'm barely hangin' on. I told you everything, opened up and let you in. You made me feel alright for once in my life. Now all that's left of me is what I pretend to be. So together, but so broken up inside. Cause I can't breathe, no I can't sleep. I'm barely hangin' on. Swallow me, then spit me out. For hating you I blame myself. Seeing you, it kills me now. No I don't cry on the outside anymore. Here I am once again. I'm torn into pieces, can't deny it, can't pretend. just thought you were the one. Broken up deep inside but you won't get to see the tears I cry, behind these hazel eyes." ~Kelly Clarkson~