No Featherbed For Me contains examples of these tropes:
All Love Is Unrequited: Sansa is in love with Gendry, who loves Arya, who loves him back, but ends up marrying other men. In reality she says she really loved a knight that has yet to be named. Aemon is in love with Alysanne, who loves Brandon. Rhaenys loves Rhaego, who married someone else. She may possibly also be in love with Aemon.
Edric Dayne loves Arya.
Amicable Exes: Arya and Renly get along even better once their relationship ends.
Bitch in Sheep's Clothing: While Sansa aspires to fill the role of Princess Classic and The High Queen, her manipulative side comes out whenever her dreams are threatened. For instance, when Prince Gendry tells her he doesn't wish to marry her and would rather wed her sister, Sansa schemes with his mother to make him marry her anyway. Also, when Arya returns to King's Landing after being widowed during the war, Sansa suggests marrying her off to Renly in order to keep her away from Gendry — though neither Renly nor Arya wants this marriage at all. Later, when Arya and Gendry have a son together, Sansa steals the letters he writes to Arya, asking for a place in Brandon's life.
Bittersweet Ending: Aemon and Rhaenys die and neither Gendry and Arya or Brandon and Alysanne stay together, but they part on good terms, Westeros is at peace and once more divided into seven kingdoms, and Arya is at home in Winterfell, with Jon, and finally, for the first time in a long while, truly happy.
Generation Xerox: The Arya, Gendry, and Aegon love triangle is exactly like the one between Lyanna, Robert, and Rhaegar. It even ends with a new king sitting on the Iron Throne and the deaths of almost an entire house.
Aemon, Alysanne, and Brandon are Robert, Cersei, and Jaime. Time will tell if Alysanne and Brandon's child will be another Joffery. By the end, they also have a lot in common with the Arya, Sansa, and Gendry triangle.
Rhaenys and Alysanne are a lot like Arya and Sansa.
Good Adultery, Bad Adultery: Played with. Arya's affairs have consequences and she is called out on them, however she remains sympathetic and her reasons make sense.
Irony: Arya's reason for rejecting Gendry is because she doesn't want to be queen. She later runs off with and marries Aegon Targaryen who takes back the Iron Throne and makes her queen.
Aegon and Arya want their children to be who they want to be. All of them end up forced into a life they never wanted.
Jerkass Has a Point: Arya's reasons for not wanting to marry Gendry are actually right. She would make a terrible queen and Sansa is much better suited for it. Gendry however, is actually right about them being able to have made one another happy.
Like Brother and Sister: Arya describes her relationship with Gendry this way to Catelyn when her mother asks about her feelings for the crown prince.
Sansa loves Gendry who is in love with Arya. Arya has been married multiple time. Once to Renly, who love Loras Tyrell. Aegon loves Arya, but he takes a second wife. Rhaenys loves Rhaego, who marries someone else. Then there is Aemon who loves Alysanne who loves Brandon. Rhaenys may or may not love Aemon.