I think the cast is too big, and that means that stories/characters disappear for long stretches. You'd think that with 6 episodes/week they would have the time to handle that, but they obviously can't.
The whole Pete/Priya story came completely out of nowhere and really made no sense. If Priya sees Leyla as a friend then why would she jump into bed with her boyfriend, and do it more than once? And then act morally outraged at Pete! Pot, meet kettle!
It felt like they just threw that story into play to give them something to do.
Henry!
In hindsight it's amazing that Rachel had the nerve to act like the injured party towards Lynn. She had an affair with Lynn's husband for heaven's sake, and her mother killed him, albeit by accident.
Rachel really was a homewrecker of the highest calibre when you think of it. She had affairs with married men not once, not twice, but three times during her time in the village, and in two of those instances the betrayed wife was a friend of hers (Kathy and Sarah).