"Close to actually hitting each other" read as "the mother would hit the father and, at times, the father would almost hit back".
"Almost lose interest in me as her daughter" and why do you care? You are a stupid ass adult, it doesn't matter one bit if these people that, from your own point of view, are terrible people like you or not. Just live your life calmly until you are of an age you can get out of there and do it. It is not like you have nowhere else to go.