She gets 8 hour of uninterrupted sleep because she has palmed her kids off on someone else.
She's always been basic and a bit annoying but she's becoming really unlikeable in my opinion; I find it interesting that she clearly had a difficult relationship with her mum, so much so she became estranged from her, and here she is spending as little time with her kids as possible (it seems) by choice. Eating hoards of pizza and study sessions at night, is what you do at uni and have no other commitments like seeing your children before they go to bed. Her obvious relief and smugness about being child free most of the week, and then mentioning her kids for AD revenue.
She will never become a doctor because she doesn't have the intellect or emotional intelligence, or self discipline it takes to keep going, she's far too lazy. She's doing only just started her A Levels, she hasn't even got in to Med school and already she's talking about how she's a doctor in training, it's so embarrassing and deluded. Like how she would refer to herself as a journalist.
I think Chris broke it off with her a while ago and she trying to pretend that she is living her best life, but the dungarees and sandles are saying something else.
I hope Chris meets someone who actually appreciates him and not just wants to lie on the sofa stuffing her face talking about her period and pretending her kids don't exist.