I really identified with Mario. I have two children under 5. I had mild post partum depression with my second and anxiety. My first child never slept, so I was exhausted all the time.
This movie is some women's situation. Just because she's exhausted doesn't mean she doesn't love her babies or love being a mom. In the bar scene she says she misses Mia and doesn't want her to grow. I remember feeling the same way about both of mine. It's the toughest job I've ever done, but it's also the best. I really believe mom's who say they never struggle with anything about being a mom are lieing to themselves. Eventually they will meet something that causes them to questions their abilities as a mother.