And fare thee weel, my only Luve,
And fare thee weel a while!
Suddenly, it's time to say goodbye. Or in this case, "fare thee weel." Hey, same diff.
"Weel" does not mean "wheel" but is rather an older form of the word "well"; say it aloud, and you'll see that it sounds really Scottish.
The phrase "fare thee weel a while" means something like "farewell, for now" or "farewell for the time being."
But it could also mean "take care of yourself for now" or "may you be well." The word "fare" can be a verb that means do or go.
For whatever reason, these two lovebirds are splitting like a banana. But we think they're gonna be just fine at the whole long-distance thing. We mean, if your love outlasts the sun, what's a few miles?
And I will come again, my Luve,
Tho' it were ten thousand mile.