How does stella respond to blanches criticisms of stanley?

Stella and Stanley have a strong physical attraction to one another, and they seem to be living the life that they wish to have. She tells Blanche that she is happy with Stanley, and the audience sees that they fight like mad, but then they make up with just as much passion so they are content in the life they live. According to Stella, Blanche simply does not see Stanley the way she (Stella) does, and thus cannot see what might be good about him.