They been separated for almost 11 years. and he doesn't feel the same for his wife doesn't even think of her like he used to, they been also trying to have a baby but cant have one he thinks his wife is cold when it comes to S**.
Within a month, Mama Elena dies. The cause of her ailments and eventual death is revealed to be massive doses of ipecac ( an emetic she took when she feared poisoning), not Tita's cooking. Despite the endless cruelty that she suffered at the hands of Mama elena, Tita is moved to great sorrow by her mother's death.