Need advice....

SO ok, about a month and a half ago, my mom discovered my dick of a father was cheating on her over the *********. there procceded to be a three week period of yelling and crying for my entire family, and things calmed down a bit...my family might be moving to NC for reasons that dont need to be discussed but, my dad is practically refusing to go with us asking whats the point of him going if he just pays for the apartment/ sends me to get the training i need. He told my mom he stopped emailing the fucking whores and bitches (there were about four to my knowledge) but about a week ago i walked in on him contacting the same cumdumpsters over some other service. should i tell the rest of my family, and expose the cock sucker or keep my mouth shut for the peace for everyone and the possible move....also the cock sucker is addicted to painkillers but refuses to accept it and his doctor refuses to accept it too.

Please...i legit have no idea what to do in my situation no 17 year old should have to put up with any bullshit like this...

Biden.