Lyric discussion by ElectraHeart2000 

Cover art for Grins lyrics by Charli XCX

This song could be about her questioning her partner's feelings towards her. He is unsure whether he is truly in love with her or not and she is hoping he will commit to her.

She goes from:

'I don't suppose you'd shoot me dead again." Meaning she is worried he will break her heart again. to: 'Cos I feel like I'm in heaven dancing with an angel.' The one time he comes back to her she fees so elated. to: 'Beaches and oceans life was quaking, That's my heart that you were breaking.' Things aren't so perfect any more and he breaks her heart.

Because the song repeats itself I think this means that the love/heartbreak cycle happens all over again. Her and her partners emotions are very up and down.

Hope this helps ;)

My Interpretation