I don't think so cause in ep 26 in prison when Zang Hai told the Duke Ping Jin that he knows the third person is the queen he laughed and said Good Son
For some people it waa like an open ending,he will be back after 12 years or not we don't know,but like u I also thought it was a sad ending She could have gone with him why he is the one to stay She could have gone with him sinoleas that