Arianna

Arianna is the friendship pairing between Aria Montgomery and Hanna Marin.

Hanna and Aria are very close from the beginning. When Aria broke up with Ezra, Hanna visited Ezra at Hollis and told him that two people who love each other that much should be together, and when Caleb broke up with Hanna, she cried in Aria's lap as she tried to comfort her. Aria was the one who recommended Hanna talk to Caleb about "A." Aria doesn't let Hanna sneak into Radley by herself as she quotes "Friends don't let friends sneak into insane asylums alone". Then Hanna stays at Aria's house as Ashley is not home. Aria is also the first to know about Hanna telling to Mrs DiLaurentis that Alison is still alive. After Caleb was shot, Hanna hugs Aria as Aria rubs her arm and tells her it's going to be ok. When Hanna, Aria, Emily, and Spencer are at the hospital as Caleb was hurt, Aria hugs Hanna. Hanna was the first person Aria told about Ezra's kid and Maggie. Then Hanna suggests Aria tell Ezra about his son because secrets tear people apart. When Aria found out about Jackie, Hanna supports her and tell her "Fool me once, shame on you, fool my best friend and you are dead freaking meat."

Trivia

 * Their friendship is also known as Haria.