There's a version in the Bodleian that makes the boyfriend's betrayal of her, and her acknowledging it, quite explicit: A New Song Called Canada Heigho!! (along with another version called Lady's Trip to Kennedy) :


  
...

  But when her lover heard of it he flew into a rage,
  With him the crew and passengers were unwilling to engage,
  I'll tie your hands and feet he said and overboard you go,
  For you ne'er shall see that lovely place called Canada heigho.

  It's when this lady heard him her heart was filled with woe,
  She says you false-hearted young man why do you say so,
  I left my friends for love of you, not one of them did know
  And now you wish to drown me going to Canada heigho.

...

  After ploughing the raging sea the weather got calm and clear,
  The Captain fell in love with her and married her we hear
  Now she's dressed in silk and satin and bears a gallant show,
  And she's now a Captain's lady in Canada heigho

  Come all you pretty fair maids a lesson take by me,
  Pray follow you true love when he is going to sea,
  For if there is one who proves false some other will prove true,
  And see what honour I have gained by the wearing of the blue



Mick