It's not entirely surprising that you would be away 80 hours a week and that it would cause relationship problems, but he can't tell you he doesn't love you and then tell you how to live your life. He couldn't do it even if he did.

If you need the money so bad, he can do extra hours while you do less. Either that or find a solution to whatever financial problem is causing you to work so many hours that you're going to burn yourself out.

What exactly's stopping you from getting a new job?