The trick is to be as rude and dismissive to the dad as possible - lounge around his house like you own it, ignore him when he talks to you, make out with / fondle / slap his daughter's ass when he's around - but then be super charming and nice to her other relatives, including any siblings and ESPECIALLY her mom. Be a perfect gentleman with her, help her around the house or with cooking, etc. That way when the dad works up the courage to complain about you will ignore him and treat him like he's crazy