I can tell you why 拿了别人的钱， 还要偷偷设计把她往山西送

Chang Yan fell in love with Yi and she gets crazier and crazier. Yi didnt fall in love with Chang Yan as he has his family and kids. HE take it as affairs. He did feel sorry for Chang that is why he is willing to give Chang 1 million to cover his guilt.

The only reason he wants to send Chang yan back is that he sensed Chang yang's agressiveness and greediness and most importantly her crazy love and control. It is like a bomb beside him that could explode any minute. Who would keep a bomb by his side so he wants to send her away and gave her 1 million as reimbursement.

The whole thing is Chang Yan's fault. Mr Yi is actually not bad. At least I dont think so.