Doctor Strange's complicated feelings for Iron Man are explored in the first Doctor Strange movie.
Doctor Strange hated Iron Man because he reminded Strange of his former arrogant and abrasive self.
Strange fits in Iron Man's shoes perfectly.
Iron Man's persona was similarly arrogant and lacking in regard for others.
Strange was uncomfortable facing someone who reminded him of his past self.
Strange's relatability to Iron Man explains why he was hit hard by Iron Man's death.
Strange's Endgame tactics led to the outcome that saved everyone from Thanos but required Iron Man's death.
Strange's hatred for Iron Man was not malicious.
Strange has taken on a mentor role for the Avengers after Iron Man and Captain America's departures.
The MCU has revealed complex tension between its heroes before.
It is unclear if a permanent sacrifice is in Strange's future.