We are responsible for letting drivers know when it is safe for them to pass us in the same lane. When we ride to the left near the fog line we are letting drivers know that in our opinion they can pass in the same lane. This rider positions himself for lane sharing and then seems knicker twisted when motor vehicle drivers take him up on the sharing offer.
Riding narrow high traffic high speed two lane roads is never, in my opinion, particularly pleasant, but this is an example of making it worse than conditions dictate.