My stepdad is like this with my mom when he's drunk. He always pisses and moans about his past, how he grew up in an abusive foster home and shit. If it's not that, he bitches and moans about me transitioning. He once made comments about how he blames himself, that he wishes he taught me more "man things". That shit would NEVER have prevented me from transitioning and living my true self. When he does this, my mom puts her earbuds in and listens to music on her phone.