Track Title:               (I don't know why) But I do

Album Title:               Forrest Gump Soundtrack Album, (disc 1)
Prime Artist:              Clarence (Frogman) Henry
Written by:                Robert Guidry
Written by:                Paul Gayten


Lyrics:
I don't know why I love you but I do
I don't know why I cry so, but I do
I only know I'm lonely
And that I want you only
I don't know why I love you but I do.
I can't sleep nights because I feel so restless
I don't know what to do I feel so helpless
And since you've been away
I cry both night and day
I don't know why I love you but I do
My days have been so lonely
My nights have been so blue
I don't know how I stand it, but I do
Each night I sit alone and tell myself
That I will fall in love with someone else
I guess I'm waistin' time
But I've got to clear my mind
I don't know why I love you but I do

http://www.thepeaches.com/music/