Brian Moore 
I am Mary Dunne [EPUB ebook] 

Who am I any more? All these names, who am I?
After three marriages and four last names, Mary, a neurotic woman in her thirties, finds herself struggling to remember her own name and losing her sense of self. But what she does want to forget, she is condemned to remember — the last days of her relationship with Hat Bell, her depressive, alcoholic second husband, and her sense of responsibility for his death.
As friends from the past resurface, these unwanted memories return full force and Mary finds herself desperately battling her inner torment. A powerful portrait of a woman struggling to reaffirm her sense of self, I am Mary Dunne is a compelling exploration of neurosis and obsessive love.