How do many abusive relationships begin

Well, the relationship is all good until either the guy or the girl thinks they aren't a good couple or they decide that it's a good idea to cheat. So once they do and the person getting cheated on finds out, they start a fight. If they keep fighting like this for a while they actually "fight fight". Like phiscally. Hope this helps! ^-^

Thats a weird question but ill answer it i think 5.