There are also other Irish Foggy Dews which are simple love songs; these too have been explored in some detail in previous discussions. Some judicious use of the search facilities here, will, as artbrooks says, probably find you most of what you want to know; but you will need some patience in exploring. If you want quick answers, then you need to give a bit more information so that we know which songs you mean; there are often several quite different ones with the same or similar titles.