Lyric discussion by DizzyKitsune 

I've always heard it as 'half a heart.' and to me it makes sense, because in the vine like grip of depression you can't give everything you've got to someone you love; It takes everything from you and restricts it. It also makes sense to me as 'I don't wanna get over you.' suggests that the person he loves left him, more reason to only have half a heart.

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