"Driver Mo, you are right. You've seen my wife before, right? So you must have figured it out." Liu Yang always spoke the word, wife, because he and Shysha have already taken the oath before heaven and earth.
Even if they don't have a marriage certificate or anything, they both treat each other as husband and wife. Besides, the two already had their wedding night. So there was no problem in calling each other husband and wife.
Shysha did the same when someone asked her if she had a lover. She said she was married.