Are you trying to BYB your dog? Why?
He is trying to dominate her & is not trying to hump her.
Doesn't sound like you know much about what is going on. Don't try to breed him, get him neutered so he cannot reproduce. BYBers are responsible for ALL the dogs in pounds, shelters & rescues. You will not ever find a good quality dog in any of these places, unless it is a breed specific rescue.
http://www.k9web.com/dog-faqs/breeding.html
He needs to be neutered & not bred.