在2009年12月至2010年2月,梅耶尔建立了一个短暂的浪漫与迅速合作后在他的歌曲“我的心的一半。”Unfortunately things between them quickly soured. Swift ended up writing a harsh breakup song about him, "Dear John," and all but confirmed it was about the musician. "There are things that were little nuances of the relationship, little hints," she revealed to the国际商业时报》。“每个人都知道,所以我没有发送电子邮件在这一点上。”
由于歌词像“亲爱的约翰,我看到这一切,现在错了/你不觉得19太年轻了你黑暗扭曲的游戏,当我这样爱你吗?”,“女儿”歌手不激动。“这让我感觉很糟糕,因为我没有应得的,”他在2012年的一次采访中解释道《滚石》杂志。“现在我很擅长采取问责,我从不做任何值得。这是一个很糟糕的让她做的事情。”Fortunately, Mayer also seems to have gotten his chance to respond via song with his 2013 tune "Paper Doll," which, per《名利场》,许多人认为斯威夫特。