The chances are if OP is the only one who gets the bad treatment, there is a reason. It might be nothing that OP has control over, it might be a difference in incompatible personalities, it might be something else... Unfortunately OP, just because you have evidence of Dad's bad behavior doesn't mean Dad is going to change that behavior overnight. Real life is not like a courtroom... As I see it, OP you have two choices - Either get Dad to open up as to why it's you he treats this way and that isn't likely to come through confrontation or an accusation. It can only come through a calm discussion with no one else around or recording it because the reason might be deeply personal or embarrassing to you or him or both. The other choice is to just put yourself out of the line of fire and stay away from Dad.