To me, it isn't about about someone whose date doesn't love them back. Instead, I think she's singing about not being able to love.
I believe she's someone who has been broken by life, pushed deep into despair. She doesn't know how anyone could love someone as wretched as her, and it's all for naught, because there isn't enough left of her to be able to love back in return. She feels sorry for her lover and wants to set them free.
Perhaps by the song title "Lark" they refer to her no longer wanting to be chained by this person's love, or that they want to free their paramour from their own lack of love, as birds are generally associated with freedom.
To me, it isn't about about someone whose date doesn't love them back. Instead, I think she's singing about not being able to love. I believe she's someone who has been broken by life, pushed deep into despair. She doesn't know how anyone could love someone as wretched as her, and it's all for naught, because there isn't enough left of her to be able to love back in return. She feels sorry for her lover and wants to set them free. Perhaps by the song title "Lark" they refer to her no longer wanting to be chained by this person's love, or that they want to free their paramour from their own lack of love, as birds are generally associated with freedom.
It is truly a beautiful and bittersweet song.