Clarke and Octavia (The 100)

Clarke and Octavia is the relationship/friendship between Clarke Griffin and Octavia Blake. They are portrayed by starring cast members Eliza Taylor and Marie Avgeropoulos and debut in the first episode of Season One, evolving from enemies to friends and back again, to finally; close friends and declared family and sisters. Clarke and Octavia become good friends during Season One, working and overcoming many obstacles together. However, their friendship ends in Season 2 when Octavia learns that Clarke knew of the missile on TonDC, and had left Octavia for dead. In Season 3 and 4, while they had to work together, Octavia wasn't fully trusting of Clarke. In Season Five, Clarke and Octavia reunite after six years but their relationship is strained due to Octavia's threat to Clarke's adoptive daughter Madi and her actions as Blodreina. Despite this, Octavia is visibly distraught when Clarke apparently dies in "Matryoshka" and overjoyed by her survival. In Season Seven, after reuniting with each other on Bardo, Clarke and Octavia reconcile and make amends with each other.