CV, you mention how H says he'd do anything to save the M, but then declines your specific requests. You draw a clear line between those two things, but I'm guessing that he, with his less logical mind, does not.
I'm curious whether you've made the connection explicit in any instance? Not as an ultimatum, but as part of clarifying the connection to him. As in, "Are you really committed to saving our M? You're willing to do anything? Would you be willing to _____? Even if it was necessary to save our M? Actually, it is necessary."