Freddy Fender - But I Do 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 wastin' time But I've got to clear my mind I don't know why I love you but I do I don't know why I love you but I do