Oh, I am so sorry that you don't have your beautiful piano any more. Now that you have your desire back that would be most difficult. Although I've lost my muse, I've gained peace and calm. I am encouraged by you that my love for music will return. They are euphoric, elated, or manic - but never happy.
Happiness is an amalgam of positive emotions.
Narcissists have very few positive emotions. Stef, she'll never be better off than you. You are MUCH better off. I know how you feel because I worshipped the ground that my ex-N walked on. Time to go night-night.