I get she's mad that she wasn't in on his scheme, but he had to stand on his own at the company - she couldn't always be the one to flex the power. He had to show, sadly, that he was his father's son and HE could be ruthless too. Otherwise they would always see HER as the powerful one and him as being too weak to lead the company without her. Yifan only did what he had to do, to ensure he gained control of the family company. After all, his father was playing similar dirty tricks on him too. The pupil has become the teacher. AnDi needs to accept that she cannot control YiFan and be involved in every little detail ans decision of his life; that's not a healthy relationship.