The Marvel Cinematic Universe has introduced many types of feuds that help grow a narrative, like Nebula and Gamora, or enhance a character's growth, like Tony Stark and Thanos. No matter the direction, feuds have represented some of the best story elements, and the MCU has become a key proponent of how well these conflicts could be implemented. That said, no feud has become more iconic in the MCU than the one between Thor and Loki.
Source：https://www.cbr.com/thor-loki-feud-privilege-of-gods/
