Please help me remember the name of this song??? HELP!!!?

Question

It is sort of a R&b Slow song. It says something like " Wrote you a letter. . " Can't understand why I love you so much". . . . . And my life's just begining. . ., with a women". . . . I have a feeling it might be Blackstreet or Boyz II men maybe even 112. SOMEONE PLEASE HELP!!! I am dying to figure it out. . I think the song says something about how his wife left him for his best friend and wrote back to his letter but didn't put a return address. . ??? Please HELP!!!!

Answer 1

Is this it?