Things between Carl and his crush start to heat up; Craig is back in town, and Paige wonders if she's finally ready to take things to the next level; Andrea brings an Italian dinner tradition to the Hamptons.

Lindsay throws an epic, twisted fairy-tale birthday bash to celebrate turning 35; when Austen arrives, Ciara isn't the only princess in the house who has eyes for this Southern Prince Charming; Paige and Craig's relationship moves in a new direction.

Andrea is fully in his element throwing an epic 50 Shades of Summer party, and he continues to seduce Paige in the process; while Lindsay is away for the weekend, Carl returns to the Hamptons in a better place, thanks to a new lady in his life.

Love is in the air as Lindsay's fairytale birthday continues; Carl's new fling seems to be fitting right in, and Mya hits it off with a potential suitor; Andrea does his best to put himself back on the market.

Kyle's late-night shenanigans are suspicious to fiancée Amanda and raise a red flag to their friends; an old flame returns and instantly heats things up for Paige; Lindsay drops a bomb on Carl that no one saw coming.

Ciara gives Alex a chance, while Paige makes a long-distance confession to Craig that leaves him livid. With Kyle and Amanda's rocky relationship on full display, the ladies of the house take it upon themselves to stage an intervention with Amanda. And Lindsay learns some life-changing news with Danielle by her side.

After a heated exchange at dinner, the house attempts to undo the damage; Craig reveals his intentions with Paige; Lindsay admits she may have feelings for Austen; with time running out before their wedding, Kyle pressures Amanda for a prenup.

The last weekend of summer starts with a bang; tensions rise among the housemates at dinner; Lindsay's Hot Hubbs pursuits land her back in the hot seat.

The housemates let loose with a prom party; Lindsay and Carl explore a flirtatious side of their friendship; the arrival of an unexpected guest leaves Paige speechless; Kyle and Amanda are feeling the pressure.

The housemates throw their annual bash; after a big disagreement, Amanda focuses on having fun while Kyle struggles to get in the mood to party.

At Danielle's beachside bonfire, Lindsay's heart is burning for her latest suitor; Mya is hesitant about her new relationship; when Andrea breaks down about his recent heartbreak, Paige wonders if he was using her the past few months.

Kyle and Amanda's big day approaches; Lindsay and Carl address their feelings towards each other; Paige and Craig finally put a label on their relationship; Kyle and Amanda are hit with a blow that no one saw coming.

After a rocky first weekend, Kyle and Amanda try to find sturdy ground in their relationship; Carl tries to get to know Ciara better, but soon realizes there might be someone else in the way.

After a shocking revelation about Craig, Paige gives her Southern charmer a taste of his own medicine with her Italian romancer; Lindsay has the time of her life as her "Hot Hubbs Summer" continues; Mya and Carl begin to form a bond.

As the Summer House reunion kicks off, Lindsay defends her Hot Hubbs Summer; Carl tarnishes his friendship with a surprising housemate along the way; Also, Danielle's relationship is questioned.

The reunion concludes with Kyle and Amanda giving an update on their prenup question; Lindsay reveals why she stopped drinking and gives insight into her romance with Carl.

Following their passionate spin the bottle kiss, Ciara and Alex wonder if there's more between them than physical attraction; Paige's heart begins to drift away from Craig and toward Andrea, who's looking for something real.