Did Irene's personality from the beginning of the story till the end? Did her relationship with Jim change at all?

What we see about Irene's personality changes. She begins in what seems to be a comfortable environment with the required two children, working husband, and decent income. With that, she seems relatively content. However, after she listened to the radio and found what many people really are like, different characteristics begin to show themselves. By the end, we realize that she does not have a perfect life and that she has a very different personality from that which was portrayed earlier in the story. And we realize that her relationship with Jim has changed greatly and is not the perfect one she would like us to see.