Having a child stuck in adolescent puberty is pain in ass, lol. Poor Yato. But Yukine doesn't mean bad, he's just in constant of 'confused' and 'scared'.
But Nora, omg, when are you gonna realise your 'father' is just using you? Heck even if he using you as a tool, normally people would cherish their precious tool. But noo this person aren't normal.. When are you gonna realise this..