Danmei Society for the Egregious Misuse of Chinese Poetry and Literature

There's a subgenre of classical Chinese poetry called the 'boudoir lament' (闺怨), often associated with women poets (though men wrote these too) where a lonely, neglected woman laments the absence of her lover/husband. The Baike entry I saw for this poem situates it adjacent to this genre but highlights that, to the extent that this poem fits within this category, it's an unusual specimen.