Lyric discussion by theamazingpill 

Cover art for Will lyrics by Dresden Dolls, The

I agree with intoodeep.

what's the worst thing that could happen? is my back all that bad?

I think this means she wants him to initiate their sexual encounters with foreplay (like a sensual massage for instance), and be more affectionate and loving.

strike the match and watch the doll come open

Strike the match and light a candle to set the mood. She wants romance and passion out of him, but he only sees her as a sexual object... essentially no different than a blow-up doll.

Like intoodeep said, her pleasure means nothing to him. He's taking what he can get out of her because she's offering it, though she's doing it in the hopes that other feelings will develop. It's the only way she can really be close to him at this point, and she too is taking what she can get out of him... even though it's tearing her up inside.

Sad song :( Lovely though