Married me again,wife

Jin Wei crown prince of the magic realm is saved by a human girl.
However, he is forced to marry the girl since she had seen his face. he doesn't care about her. He locks her in a secret chamber since only two people know that he's married.
He wholeheartedly pursued his childhood sweetheart who turns out to be a traitor that almost cost him his life.
Again, he was saved by her but he never acknowledged it. Only when she got swallowed by a dragon did he realize that he was in love with her. Now he is in search of his wife to retrieve her corpse if possible and perform her last rights
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"My wife, i promise you, i will never let anyone into my heart. I remain yours in life and death.