"I saw you with him/her."
"I don't want to be just your mistress anymore."
"I already have a date tonight."
"You had a chance and you blew it -- I'm moving on."
"It was a one time thing."
"S/He meant nothing, I swear."
"Am I supposed to wait on you forever?"
"Leave me alone, I'm trying to pack."
"I'm staying at (insert name)'s place tonight."
"I didn't -- oh God, I didn't mean to hit you that hard."
"It was always her/him, wasn't it?"
"I wish I could hate you. I wish I didn't love you."
"Maybe you should be thinking with your head. And I mean the one attached to your neck."
"If you loved me, then why did you ever go with her?"
"I'm not going to let you love me."
"I'm never going to let my feelings get the best of me."
"I'll be honest. I want to be with you more than anything. But I won't let myself."
"I'm trying to move on, you should too."
"S/He is making me happy again. Why do you want to ruin that?"
"You made out with me. That's not official, and that's not marking me as yours."
"I think we need a break."
"I think I love you more than you love me."
"This is goodbye, and don't be surprised if you never see me again."
"I'm sorry that I loved you."
"The way you kissed her? You really don't love me, it's apparent."