I can't make any assumptions about whether Orser is cold with his students. Before YuNa left him, many of us were complimenting him on how well he protected YuNa during her run-up to the Olympics, and what a nurturing environment he and David Wilson had created for her. It couldn't all have been Wilson. I have no way to know what went on behind the scenes, but the break-up with YuNa must have been such a kick in the stomach for him. Maybe you're right, Mavy, and he's still nursing that injury. Whether that has influenced his relationship with Rippon or with any other skater probably isn't evident to outsiders.
Rippon will move on and find another good coach, I suppose, but I feel really bad for Orser this year.