Mrs Mallard is a sincere character and her reactions to her husband's death are those of a woman who has devoted her life to someone else and has finally been given a chance to be herself. While she appears to celebrate her husband's death, she is really celebrating her own life, a focus she has not been able to have until his death. .
Mrs Mallard's initial reaction on hearing of her husband's death is one of release rather than grief, "She did not hear the story as many women have heard the same, with a paralyzed inability to accept its significance. She wept at once, with sudden, wild abandonment, in her sister's arms." Her immediate weeping is a natural reaction of Mrs Mallard. It is not how she decides to act, it is her direct emotional response to the news. In this weeping Mrs Mallard is acting on her own basic feelings and this shows that her reaction is genuine.
It is when she retires to her room that her actions become less emotional and more rational. She is no longer acting on instinct, she is now acting with reason. It is in her room that she considers and rationalizes her feelings in an attempt to understand her own emotions. She sits down "pressed down by a physical exhaustion that haunted her body and seemed to reach into her soul." She is then described sitting "with her head thrown back upon the cushion of the chair, quite motionless, except when a sob came up into her throat and shook her, as a child who has cried itself to sleep continues to sob in its dreams." This is a description of a woman coming to terms with something. The reference to her as a child reinforces that she is immature in some ways, with the process one of her growing up and coming to understand herself.
It is in the next passage that Mrs Mallard finally becomes aware of her own feelings. She has acted on her emotional response and now she is developing the clarity to understand her own reaction, "There was something coming to her and she was waiting for it, fearfully.