RK ,i don't think he ever had met person who had touched his heart or feel some humanity from others.that's why he kept his love towards BAPPA inside him only.that's RK behaves like that. raddhaji always claims ,she married again to give father to RK but RK didn't accept.she ever made an attempt to see is her husband really want to be a father to RISHAB.if so then how he wanted to kill RK.i think so raddhaji should know the biggest blunder or sin done by her because of her innocence raddhaji didn't bring father oneway who wants to destroy or end her son's life.radhaji bought father who is after her son's life or to kill her son , RISHU.this should be revealed to her and she should break her relation with kukuji.