I looked on the RUNHP and found two songs on there from the wedding episode of the nanny. One is called The Promise and I am not sure if this is the song that Morty sang to Fran and Max on the anniversary dinner or not, but here are the lyrics.
Say goodbye? When I can barely say goodnight
When I can hardly take my eyes from yours How far can I go? Walk away? The thought would never cross my mind
I couldn't turn my back on Spring or Fall
Your smile least of all When I say always
I mean forever I trust tomorrow as much as today
I am not afraid to say I love you But I promise you
I'll never say goodbye We're dancers On a crowded floor
while other dancers leave from song to song Our music goes on On and on And if I never leave your arms
I really would have traveled everywhere For my world is there When I say always I mean forever I trust tomorrow as much today I am not afraid to say I love you And I promise you I'll never say goodbye
The other one is For Once in My Life and here are the lyrics to that one.
For once in my life I've got someone who needs me
Someone I've needed so long For once unafraid I can go where life leads me And somehow I know I'll be strong
For once I can touch what my heart used to dream of
Long before I knew Someone warm like you
Could make my dreams come true For once in my life I won't let sorrow hurt me Not like it's hurt me before
For once I've got someone I know won't desert me
And I'm not alone anymore For once I can say: "This is mine you can't take it" As long as I've got love I know I can make it For once in my life I've got someone who needs me Someone who needs me
Hope I have been of some help!