How does Sasuke feel about Itachi's relationship with Dei's Madara? Do Madara and Sasuke get along?
[[ It was definitely something Sasuke was not expecting, and took a lot of time getting used to.
He was originally not super fond of Madara because Sasuke was told to go back to Konoha in the meantime while Madara took care of Itachi (who, as a criminal and a deserter of Akatsuki, had nowhere else to go). He was jealous, because now he wanted to spend time with his brother and Itachi tells him to go back to a village he hates now.
He continues to be weary as things progress. Sasuke is protective and possessive of Itachi, and doesn’t know how to trust easy, even if Itachi trusts Madara.
It was at least a year later, fully situated in Temujin and over dinner, that Madara just tells him. Just flat out.
That night, Sasuke violently flipped the table and stormed out of the house. He felt his brother was being stolen. (And this isn’t an issue of “well i wanted to be my brother’s lover”, it’s an issue of Sasuke’s inherent possession issue that he's always had, and he feels threatened that there’s a possibility Itachi could now love someone else more than him. He doesn’t care theyre both men in that aspect.)
He spends a few months barely talking to any of them and trying to find moments to kill Madara. He can’t though, Madara’s too powerful, and a sensor.
But in time, he begrudgingly accepts it, realizing Itachi’s not going anywhere, he still greatly cares for Sasuke, both of them are discreet and he pretty much doesn’t walk in on PDA nor is excluded from normal house goings ons, and ultimately, his brother is happy.
Sasuke does eventually learn to get along with Madara in his own way.]]
