After Meeting My Husband's Girlfriend on the High-Speed Train, I Chose to Divorce

My six-year-old son reads a book on the high-speed train. The girl in the next seat called the flight attendant irritably as if she had seen something dirty. "I don't want to sit with naughty boys, and I hate men. Please change my seat." The conductor said apologetically: "There are no free seats on this train." But the girl pointed at her nose in dissatisfaction and cursed: "My boyfriend is the train conductor! If you don't change my seat, I'll ask him to fire you immediately!" I looked at her in surprise. When did my husband become her boyfriend?