The garden in the courtyard is like entering a perfect dreamworld. I believe the woman idealises the man she believes dead - not even the man, himself, but the 'memory' of this man. By dying he has become flawless and perfect, and she can bask in the sunlight and the roses, and have her perfect little dream of him. When people die, we often only view the good points they had, and disregard any flaws they might have exhibited. We forgive them for those, or we just accept them, as if they were perfect now, having passed into death and another world. Heaven and the dreamworld of this woman are similiar in concept and so she looks back and sees only the perfect parts of her time with him. Now when the real flesh and blood man presents himself, indeed he is human and imperfect; thus shattering her perfect dream and memory. This why she quickly departs - she wants to escape this harsh reality. It is interesting that this man, this former lover, loses his memory of her, but by her seeing him, she loses her dream. Eventually, this will bring closure to her 'dream', that she has harboured all this time, deep within herself. It will put an end to her dreaming and living within her past; by the last few lines of the story, one can see it says 'it will work itself out'...both parties seem to believe this. She also refers to herself as having put 'this thing upon herself and that her husband is 'not at fault'. When she mentions a membrane being torn within her, I think this symbolises this perfect dream and remembrance she has had and kept hidden, which now is torn from her. Through a blood cleansing - the word 'blood' is used in that paragraph - she will be healed of old wounds and be able to proceed with her marriage and her life.