According to Baidu Encyclopedia, I miss you on a rainy night. The fog on the window is the lyrics of the song "Stubborn", which was written by Zhou Ren, composed by Pan, arranged by Kaqimo and sung by Xiaole Ge. It was released on September 4, 2020. Included in the album of the same name "Stubborn".
Part of the lyrics: I am not only stubborn to you; Tears occasionally visit inexplicably; So I will be busy and numb to love; But suddenly I remembered everything.