<human>:  Why did Clara Schumann write so many songs about her husband Robert Schumann?
<bot>: Clara Schumann wrote many songs about her husband because they were in love. They were married for 30 years and had a happy life together. They had 3 children, and Robert Schumann was a very talented musician. Robert Schumann died of a heart attack at the age of 51, after suffering from a stroke.