Andreas, was this translation done or the words created by a speaker-of-some-language-other-than-English?
I think maybe the verse should be something like "Oh my love, my love briny.." which would match the longing for the sea. (briny=salty) In the rhyme scheme of your version, the first and third lines rhyme, so the first line should rhyme with "country".
Blessings,
Barbara