Nebula and Gamora

The pair of sisters, Nebula and Gamora have a former rivalry and sisterly relationship ever since they were children.Both of them had a rivalryafter Gamora always bested Nebula in battle, because the latter of the two just wanted a sister but the more the sisters fought, the more they drifted apart from each other. By adulthood, the sisters completely hated each other and had a strong rivalry. For years, Gamora never understood hre sister's desire to always be better than her but still cared for Nebula. Nebula cared about her sister, to an extent, as she believed killing Gamora in space was merciful in comparrison to what Thanos and Ronan would do to her. They personally fought each other during the Battle of Xandar, where Gamora offered her sister a chance at redemption. However, Nebula refused, having loyalty only to herself at this point.

In Vol. 2, Nebula revealed why she wanted to overshadow her older sister, becuase Gamora allowed Thanos to rip her apart and put her back together again in machinery. Before, Nebula was trying to kill her sister, but they began reconciling after Nebula saved Gamora from falling during the battle on Ego. At Yondu's funeral, both sisters finally forgave each other, but Nebula didn't stay to become a Guardian and only left to kill Thanos. By Avengers: Infinity War, Gamora hated seeing her adoptive sister in pain when Thanos tortured her with the infinity gauntlet and gave in, ignoring Nebula's silent pleads to not tell their father about the Infinity Stone, The Soul Stone.

Trivia

 * It is most likely that Nebula is younger than Gamora because of her younger sibling-like behaviour.


 * They Have a closer relationship than all their other siblings.
 * They bothhate their adoptive father for turning them into weapons and taking them away from their biological family.
 * Gamora and Nebula have a relationship similar to Thor and Loki.