Michael can't understand it. He just doesn't get what is going on with his wife of over 25 years, Amy. Michael is concerned about her and wondering when she is going to "get over" the childhood physical and sexual abuse she went through years ago.  He really just wants her to be okay. And honestly, he's sick of her trauma symptoms affecting her, him and their children. He's not sure how much longer he can take it. 

He wonders, “why can't she just get over it?”