I'm really surprised this isn't playing better on Mumsnet. I recognise most of the characters from past threads.
Robin is dealing with a horrific event half a lifetime ago. She's all over the place, changing from one minute to the next.
Her mother is emotionally manipulative and possibly toxic as hell, and Robin knows it, but can do little about it. I bet if NZ had stately homes, her mother would have taken her to a few.
GJ is a cult leader who basically has to do feck all to get women to follow her. She's not even trying. They are desperate in their weakness for even the most cynical and offhand comments from her.
Matt Mitcham is the equal of some of the hideous abusive characters I've read about on here, and then some.
Johnno the ex is still a bit of an enigma, really, isn't he? We'd all be telling her to steer clear, I suspect. Still two more episodes for him to turn out a wrong-'un.
And the cop, Al...I think he's by far the worst. Good looking, calm, fairly smooth, do-gooder, we thought he was good at his job but that's been brought into question. He gets Robin drunk, undresses her when she can't remember, puts her in his bed...sacks her, re-employs her just to talk to a journalist, and then quietly and firmly proposes to her, knowing she's in a very vulnerable state of mind. He's a giant emotionally abusive head fuck, one of those men we read about time and again on here. I hope he gets shown up for what he is. I love the way his character has been written: nothing signposted or talked about, no pantomime evil, just the insidious and commonplace reality of someone who doesn't quite make your red flags wave, but who's unsettling all the same.