Solved: Female British vocalist, slow descent of a relationship?

I heard a song in Forever 21 today which I really loved. It features a female, British vocalist singing very fast. I think the first line of the song was something like "the first date went okay" but then the lyrics go on to talk about how the couple starts fighting in front of all of their friends, and she's saying something which totally doesn't interest him and he's thinking up something to say, and then they're calling each other names, and she says "i'd rather be with your mates because they're more fit than you" or something like that.

Thanks in advance for any help!

I think your looking for

"Foundations" by Kate Nash

YouTube - Kate Nash -Foundations

Thursday night, every thing's fine, except you've got that look in your eye
when I'm tellin' a story and you find it boring,
you're thinking of something to say.
You'll go along with it then drop it and humiliate me in front of our friends.

Then I'll use that voice that you find annoyin' and say something like
"yeah, intelligent input, darlin', why don't you just have another beer then?"

Then you'll call me a *****
and everyone we're with will be embarrassed,
and i wont give a ****.

My finger tips are holding onto the cracks in our foundation,
and i know that i should let go,
but i can't.
And every time we fight i know it's not right,
every time that you're upset and i smile.
i know i should forget, but i can't.

You said I must eat so many lemons
'cause i am so bitter.
I said
"I'd rather be with your friends mate 'cause they are much fitter."

Yes, it was childish and you got aggressive,
and i must admit that i was a bit scared,
but it gives me thrills to wind you up.

My finger tips are holding on to the cracks in our foundation,
and i know that i should let go,
but i can't.
And every time we fight i know it's not right,
every time that you're upset and i smile.
i know i should forget, but i can't.

Your face is pasty 'cause you've gone and got so wasted, what a surprise.
Don't want to look at your face 'cause it's makin' me sick.
You've gone and got sick on my trainers,
I only got these yesterday.
Oh, my gosh, i cannot be bothered with this.

Well, I'll leave you there 'till the mornin',
and i purposely wont turn the heating on
and dear God, i hope I'm not stuck with this one.

My finger tips are holding onto the cracks in our foundation,
and i know that i should let go,
but i can't.
And every time we fight i know it's not right,
every time that you're upset and i smile.
i know i should forget, but i can't.

And every time we fight i know it's not right,
every time that you're upset and i smile.
i know i should forget, but i can't.

Yes, that's it! Thank you so much!!

You're welcome