Is hitting ur wife allowed in Islam

So i assume u r married n if u ever get caught in such a situation(Godforbid)u'll leave ur partner right away?If u r not married then u can say it very easily but if u r married,living with ur partner n esp hav kids then u cannot hav any idea how hard it can b.e.g refer to notorious posts.Hav u ever thought y so many ladies keep living in such relationships.is it cause they hav no common sense?No dear its cause its no petty thing to pack ur bag leave n say ok tata bye bye.its not hollywood celebs we r talking abt but real ppl.