Look at this,
Look at what you did to me.

You said you loved me,
You said you needed me,
but it was all pretend.

I know now what I didn't know before,
you always lied,
you always cheated,
you even had a chick on the side.
I dont know why I even try.

I try to keep it up,
but you know what!
I've given up! !

Brandi Knecht

http://www.poemhunter.com/poem/given-up-on-you/