Lyric discussion by lorenz0 

it is metaphorical, and florence and the machine are of course covering themselves they dont want people thinking their sadomasochists lol. Of course to the casual listener would seem to be a about violence, but what i actually think its about is a turbulent relationship where a couple are the opposite of each other so they both get on each others nerves alot but they still love each other even after all the arguments and even though they know they will continue to fight

'my black eye cast no shadow your red eye sees no pain' - this i believe refers to the fact that the argument was petty and didn't effect the way they feel for eachother

'broke your jaw once before spilt your blood upon the floor you broke my leg in return sit back and watch the bed burn' - this is saying they have argued but afterwards they can lay back appologize let the moment pass/allow the flames to die out then have a laugh about the whole thing.

this is what i think its about hope i helped (rate if i did lol)

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