Willie's devotion to Maggie was "as constant as the Northern Star.....constantly in the darkness" as Joni Mitchel once wrote. It's one of my pet peeves that they didn't either let Maggie return the affection at some point, or let him fall in love with someone else. Karlen's willingness to play Willie's emotional state without constraint or hesitation gave that character his soul. He should have been allowed the chance to portray Willie in love, happy, even joyful, for a change. It would have been fascinating.