Because my father wants to blame everything that he does not like about me on R and R's influence on me when I was growing up. If Maman had not allowed him in the house, allowed him to stay with us when he needed a break from his parents, if she hadn't allowed him to be openly bisexual in the house than I wouldn't be bisexual. Somehow that logic works for him.
He's liked exactly one person I've dated in my entire life and everyone else hated her. Haruhi actually bonded with my exboyfriend over hating this girl.