Ten Years Bet

I accidentally saw the uninterrupted chat history between my wife and my dead brother for ten years. It was clearly at the top of WeChat, but I hadn't even noticed it in ten years. On the day of my brother's death, I had a high fever and accompanied her in the rain at the grave, watching her heartbroken. She was absent from my carefully prepared tenth anniversary, but got drunk at a roadside stall. After the anaphylactic shock, she was still mumbling: "Song Xiyang still loves me after ten years. I won this bet..." But why did she hysterically beg me to go back when I really left?