Two assassins working for S.h.i.e.l.d.
Why them?Fighters. Partner. Soulmates.
They are equals.
They have chemistry to die for.
They have no superpowers.
Intelligent, cool, competent, daring, brave
They barely smile or laugh.
They were literally ready to die for each other. She did.
How did they meet?In Budapest. Duh! Clint was sent to kill Natasha, but he made a different call.
Unforgotten
The Avengers
Natasha gets a call in the middle of being tortured. She learns that Clint is compromised. Natasha beats her torturers and runs off to help him.
Natasha looks at a digital screening of Clint, maybe thinking about him and their past.
Loki talks about how he will make Clint kill Natasha and then, after Clint realizes what he'd done, Loki splits his skull. Natasha looks horrified, and though she played him, she was indeed affected by Loki's threat.
They fight to the death. She wins and breaks the spell he is under by hitting him hard on the head. He calls her Tasha. She knocks him out.
He wakes up. She is at his side. They talk about their way of life. They know each other well.
Steve goes to get Natasha. Clint walks out the bathroom and says he can fly a jet. Of course, he comes along. Steve doesn't trust him. Natasha assures Clint's loyalty with a nod of her head.
They fly and fight side by side.
Budapest! What?
Natasha, chased by Loki, needs help, Clint shoots Loki out of the sky.
Natasha whispers something into his ear. He smiles.
They drive off together.
The Avengers go for a bite. Natasha and Clint sit next to each other. They look at each other. Clint's leg in up on Natasha's chair. Nobody says one word.
Avengers - Age of Ultron
Clint is badly injured. Natasha calls out his name and rushes to his side. She takes care of him.
Natasha worries about Clint on the flight back to Stark's tower. She stays at his side until he is taken care of and patched up.
Natasha wears a particular sweater. Clint wears the same sweater on the next day.
Natasha is mind controlled. Clint takes care of her.
Clint even supports Natasha walking to the door of his home. He just let go of her inside the house.
Natasha is the only one who knew about Clint's family.
Natasha is missing. Clint is worried sick.
He goes and finds her.
In the middle of fighting a war, Clint talks to Natasha about rebuilding his home.
Captain America - Civil War
They fight on different sides. Though Clint pulls his punches, and Natasha is concerned if they are still friends doing this. Clint smiles at her.
The Avengers - Endgame
Rhodes tells Natasha what Clint is doing. Natasha worries about him. She asks Rhodes to track him down. After Rhodes has left, she cries.
Natasha tracks Clint in Tokyo down. She watches him killing gangsters. She says there is hope to bring his family back. She and he have tears in their eyes. She grabs his hand and he let her. They hold hands.
Clint comes back from his time travel. Natasha runs to him and helps him to stand up. She touches his face. His hand is on her hip. They hold on to each other.
When the Avengers are planning and talking, they sit next to each other.
Natasha wears the Arrow necklace when Clint is around. He can't miss it.
They fly into space. He mentions Budapest. She beams at him. Wow. That woman never smiles.
Flashback New York. Clint and Natasha having a drink together.
Natasha and Clint are sent to Vormir to get the Soul Stone. Only at their arrival they learn that the only way to get the stone is to lose that what you love. Natasha and Clint argue about who of them will sacrifice his life. They don't agree. They are holding hands. They put their foreheads together. Then Natasha and Clint fight each other to sacrifice the life for the other one. Natasha wins by tricking Clint, tying him to the wall, then pushes herself off the wall falling into the abyss to her death. Clint gets the Soul Stone but is devastated about her death, crying in solitude. He returns to the team of the Avengers with tears in his eyes, not able speak about the loss he endured.
Thor thinks they can bring back Natasha with time travel. Clint says no, it can't be undone, and argues with him, almost starts crying again.
Clint and Wanda mourn Natasha and Vision alone together.