Madara and Kira were living a peaceful life as a married couple after Madara successfully casted the Infinite Tsukiyomi of the world after the 4th great ninja war. Their relationship wasn't toxic but...a bit sarcastic? Like Madara being a super aggressive cat and Kira being an innocent, loving, soft and gentle owner. Kira's body is always full of bruises 'n blue marks caused by Madara which he says: "don't be too overdramatic, these are just love bites" then he again bites her. He was very clingy and wouldn't even let her go to the bathroom and keep biting her over and over. Like, bruh- stop biting her over and again! She isn't your toy! You didn't buy her! She's not food! Go eat smth edible if you're hungry! And on top of that, he loved hearing her moan in pain. Poor Kira, Madara just technically tortures her with bites. But he also cares for her and loves her very much! Always showers her with affection and snuggies. Then wouldn't even let go off her poor soul after all that bullying of his. And today was no other exception, Kira(the angel) was combing her hair and Madara(the devil cat) goes over to her, picks her up, throws her on the bed and jumps on her then cuddles her and bites her neck and pinches her thighs, not even letting the poor soul react. Then grips her waist tightly and licks her collar-bone. Bites her cheek then says: "Hehehe...you're mine!!! Poor soul~"