If you think about it, the man that killed his father was about to be killed by T'Challa, and Michonne stopped it cuz "the world is watching". In dude's mind, his girl wasn't on the same page as him. At that point she's more concerned with her loyalty to the throne than her man getting personal closure. They both kind of knew the relationship was a wrap.I don't see how Get Out and Michonne's relationship can persist after that move he pulled. dude literally traited on her and his nation. you know that's gonna be the FIRST thing she brings up every argument .