By Breaking Celebrity News Staff

John Mayer is not too happy with Taylor Swift.

The Your Body Is A Wonderland singer tells the new edition of Rolling Stone that Swift's country ballad Dear John made him feel "terrible," as he looked at it as a series of cheap digs communicated through shoddy songwriting, via his rumored love interest that year.

Some of the 2010 song's possible-powderkeg lyrics include the lines: "Dear John, I see it all, now it was wrong … don't you think 19 is too young to be played by your dark twisted games, when I loved you so?"

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The 34-year-old Daughters singer told the magazine: "I was really caught off-guard, and it really humiliated me at a time when I'd already been dressed down. I mean, how would you feel if, at the lowest you've ever been, someone kicked you even lower?"

Mayer, known for his past flings with Jennifer Aniston and Jessica Simpson, said the song also really rubbed