Just sit her down and explain that, if she leaves you now, she'll take away the biggest part of you and you'd be lost without her. Useless on your horn, spending your days just crying. But, if she can refrain from leaving you, you'll change your tune and promise to cut down on the music. You'll even buy a whistle and flute to smarten yourself up and take her out where she can eat her dinner in a fancy restaurant. Ain't no doubt about it, she'll have a change of heart.