Top ten books for the broken-hearted

Susie Steiner is the author of Missing, Presumed. One of her ten top books for the broken-hearted, as shared at the Guardian:
Solitude by Anthony Storr

Did Beethoven compose great works before snuggling up in happy coupledom? He did not. While the world harps on about relationships being the key to happiness, psychiatrist Storr argues in this very kindly work that we pay far too little attention