Wouldn't the police arrest her? (Spoilers)
Wouldn’t Catherine be arrested for murder – or at least for causing Chloe’s death? I mean it was an accident but certainly Catherine pushed Chloe away physically not because she was threatened at that stage, but just because her son burst into the room and saw them kissing. If they were struggling or fighting, Catherine might have claimed self-defense, but there was nothing to support that claim in that scenario.
Also, Chloe had emailed to Catherine earlier the pictures of their love scenes. So to the police, Catherine clearly had a motive.
So what was supposed to have taken place after Chloe's death? All we see in the film was that all was well after Chloe was gone and the family was reunited again.