Dalinar cannot hear or remember her name, possibly because of Old Magic. He has no memories of her, but knows he was married to her for years before her death. When her name is mentioned, Dalinar hears a rushing of wind instead of her name. Searching for some recollection of her, Dalinar asks Navani Kholin about her, who says that she was a nice woman, but didn't match Dalinar in intellect.
She has been erased from Dalinars memory so thoroughly that sometimes he has trouble even remembering that he had ever been married in the first place. Dalinar is able to remember memories which include her but will see a blank spot where she should be in the memory, even if all other details are incredibly crisp.Dalinar thinks of these as strange gaps and foggy areas of his mind.