My best two for lost love...
"Where are You Tonight I Wonder" - Andy M. Stewart
"Banks of The Lee" - The version in Andy's Songbook (there are quite a few by this title - in this case the song begins with;
"Where true lovers meet, Beneath the green bower Where true lovers meet, beneath the green tree And Mary, Fond Mary, she says unto her True Love You have stolen my young heart, on the banks of the Lee"
Rick