a photograph of a person?
I am unseeing,
photographed people are inanimate objects
But I exist, unfeeling,
photographed people are still existent, but do not retain the characteristics of the living person
I lie here, not alone, without company,
photographed people can't move (unless you're in the Harry Potter universe), and while a photograph may depict multiple people together (not alone), those other people cannot be considered "company" as they are not living or animate either
Not lost, but lost.
Not gone, but gone.
A person in a photograph does not exist anymore because that picture is of a past version of herself. However, somehow she still does exist because that same person is likely still alive and present in the world.
I simply lie here, not living,
a photographed person literally just exists in the present. It doesn't live, time has stopped for it.
What am I?