The best episodes of Girls take the ladies in question out of their element and see how they react to a new environment. Last season's "One Man's Trash" – where Hannah spent a weekend in the luxurious home of a handsome doctor – has a lot in common with last night's episode, which sees the girls on vacation in the Hamptons. They're there to recharge as a friend group – a construct that Marnie dreams to life, in an effort to salvage their crumbling relationships. It doesn't take long, however, for that plan to foil, and the re-arrival of Elijah doesn't help.

Hannah runs into Elijah downtown while the girls are picking up supplies for the weekend and invites him and his friends (and new boyfriend) back to the house. Considering Elijah is one of the main reasons Marnie and Hannah had a brief falling out, it's obvious why Marnie is none too thrilled about their expansion of guests. She gets over it eventually, and the group has a lot of fun drinking and swimming and catching up. They even learn a dance routine from Elijah's choreographer friend. But even Hannah and Marnie's drunken heart to heart can't stitch up the binds that have been unfurling for so long, and by the time dinner rolls around – and Hannah refuses to kick out the boys, for whom there's not enough food – s*** really hits the fan.

Leave it to Shoshanna to break the tension with a cutting knife, and unleash the flood of argument that makes up most of the final act. Suddenly, every horrible thing the four of them have been sitting on is brought to the table and they explode in a string of condensation and animosity. "You treat me like a f***ing cab driver, seriously, you have entire conversations in front of me like I'm invisible," says Shosh, before declaring she doesn't want to spend time with any of them any more. Marnie and Hannah also get venomous, while Jessa tries to settle things down. Eventually, they all storm off to bed.

What makes this episode great are the moments that come next. The girls (and boys, who all stayed over, too, witnesses to the horror show that unfolded in the living room) slowly start to wake up and head to the kitchen to clean, where they do just that – in total silence. Later, as they wait for their bus, still quiet, they slowly start miming the dance moves that they learned the night before, and the episode ends with them laughing again. It's a moment that perfectly captures the sometimes ugly reality of female friendship – all tension and gristle on the outside, but tender and understanding underneath. It's like they're saying to us, the audience, "we're gonna be ok." I don't know if I believe them, but I'm glad to see them happy again – even if it's temporary.