Who Sings A Song That Goes Dear Rita I Hope This Letter Reaches You In Time?

It could be Uncle Sam with I Don't want to Ever See You Again

It starts :
Early one morning while you was asleep.
I received a letter, but there was no addressee.
So I paid it no mind in fact.
I wanted to send it back, but sumthin I was feelin said open it.
It said dear Rita was a close friend of mine
Hope that this letter finds you in time.
Because you love is ending and my life just beginning.
With a women that I knew you or didn't you and it make me
want to say...