She had been slighted by him, she fancied. The dialog I learned to it (as mentioned above) goes:

"Do you recall, in yonder town, when the red wine was a -flowing?
You drank a health to the girls around
But slighted Bar'bra Ellen.

O, I recall, in yonder town, when the red wine was a-flowing.
I gave a health to the girls around, and my love to Bar'bra Ellen"

Had she been a witch, methinks, she would not have been so wholly converted when the bells began to knell.

That said, I have always thought her remarks to the young man were as cruel as young love could get.

A