Disclamier: I don't own anything!

He stood and watched her singing 'Get it right'. The song that she had wrote from the bottom of her heart. It killed him when she told him she had kissed puck when she found out about Santana and him. But god he totally deserved it. He had given away the one thing he had wanted to give to Rachel Berry. Why had he let it get this far?

'Cause I can't go back and undo this'
I just have to stay and face my mistakes
But if I get stronger and wiser
I'll get through this
What can you do when your good isn't good enough?
When all that you touch tumbles down?

When he walk away from her that day telling her " I Never thought you would make me feel like this", he felt like his heart had been ripped out. He knew Rachel Berry was the one for him, but at that moment in time he had vision of her and puck together, it made his skin crawl.

Cause my best intentions keep making a mess of things
I just wanna fix it somehow
But how many times will it take?
Oh, how many times will it take for me?
To get it right

As she turned around and looked at him, he did his best to give her a half-hearted smile. All the lyrics she was singing were the truth. He didn't quite understand why he was back together with Quinn. He had only meant to go with her as a rebound, to forget about the heartbreak that Rachel Berry had put him through. But was he forgetting Quinn had done exactly the same thing, only worse that Rachel.

So I throw up my fist
Throw a punch in the air
And accept the truth that sometimes life isn't fair
Yeah, I'll send down a wish
Yeah, I'll send up a prayer
And finally, someone will see
How much I care!
What can you do when your good isn't good enough?
When all that you touch tumbles down?
'Cause my best intentions keep making a mess of things
I just wanna fix it somehow
But how many it times will it take?
Oh, how many times will it take for me?
To get it right
To get it ri-igh-ight

As she belted out the last note, he just knew what he had to do. Finn Hudson had to break up with Quinn and fix things with Rachel. If he didn't he would be a fool.