We first noticed this habit April had of pointing out that Mommy's head is in the clouds when she pointed out Elly's faulty logic as regards what to do about Jeremy. It's somewhat obvious that Elly still doesn't really understand that the miniature delinquent wanted to kick the shit outta April because his daddy plays harmonica and since she does, she wants him to not have a daddy or whatever loony bullshit excuse he's hiding behind. This puts her on the same page as the huffy, pious simpletons who can watch a cartoon show about people fighting inhuman monsters who want to kill everyone and wonder why they don't talk them out of it.
Fast-forward a few years to Elly not wanting to believe that someone on the inside was robbing her blind. April told her flat-out that this refusal to accept the possibility that sometimes, people are mean left her vulnerable. Elly had to be sat down and told what had happened and she was mostly mad at other people for not telling her what she didn't listen to. Simply put, she was being a terrible parent to April and she doesn't understand it because she's dense.