What do I have that he needs?
What do I possess that he wants?
What do I have that he can't get anywhere else?
What is the leverage I have?

Nothing.
Because he is purely physical, external.
He sees people as machines, material objects/items to be used
at his disposal.
Humans and animals are perceived as objects to be used when
needed then promptly discarded and disposed of when they
no longer serve his purpose.