my Grampa used to sing this song all the time-it was all in french-alot of my aunts sing it but when I tried to get my French speaking friend to help-she couldnt figure it out-so here goes nothing-sorry I dont know alot, and the french spelling is going to be bad:

they think it is called -fret ajour or fret jour or ssolay, they think it is a song about a mother, but the only words my friend could figure out was
-it is not
-we will always
-you are pretty but then it's not for me

I know it is not a lot to go on-but they sing it at every family gathering and because they are not french-are probably pronouncing alot of the song wrong-hope someone can help me.