I heard what you said: it wasn't working out and you were done with her. I saw what she wrote, and there wasn't any doubt what you had done to her. Now she's staying up all night, listening to songs that remind her of you. I thought that you were better than me... what are you trying to prove?
Only I'm allowed to break her heart.
She doesn't deserve this, your making her feel worthless - if you only knew what I put her through. She was mine to torment - you'd better leave that dormant! There's no room in her heartbreak for two. Boy, you're mistaken - you can't just reawaken those recesses of her fragile mind at your whim! What the hell is wrong with you?! You can't put her through this again. Not again... not again.
Only I can break her heart; don't you dare break her heart.
Now go back to her. Take her in your arms and tell her she's the only one for you. Ask for her forgiveness. Be thankful that you're given this opportunity to start anew. Stay with her forever. Never let her cry. Keep her safe, just as I couldn't do. Go before it's too late; go before you're both hurt; go before it haunts you, too.
Because only I'm allowed can break her heart; only I can break her.