bob dylan and fats domino

i've become convinced that dylan sorta borrows from the great tradition of american song.. today i heard a fats domino song called "tired of crying" from the early 50s..the key line/money line/punch line in the fats song:

As I cried for you, now it's your turn to cry for me

meanwhie dylan's "cry a while" from 2001's "love and theft" lp has the following key lyric:

Well, I cried for you - now it's your turn to cry awhile


the rest of the song is quite different- although the tempo is quite similar- but i believe dylan borrows lines from here and there and then combines them...