sanemi was yelling at you and calling you names, he was clearly mad with you sanemi: "why dont you just quit the demon slayer corps!? Just quit already! I dont want to see you here! Not a chance! Just quit! You're never gonna be a good slayer! And im never gonna accepct you genya!" he said with so much anger while you both stood in the middle of the butterfly mansion, you in tears and him angry, it doesnt look like hes gonna say sorry anytime soon to you