On the Edge by J.J. Mulder

Henri Vasel has perfected the art of people pleasing. He’s a good student, a fair hockey player, and he has a group of friends he’d do anything for. He’s happy. Or, rather, as happy as he can be when he has a class with the one person he can’t seem to please at South Carolina University.
Atlas Kaiser hates a lot of things, but right now he hates Henri Vasel the most. He doesn’t want to have to stare at his perfect face, or listen to his adorable German accent. He wants to be left alone. Unfortunately, they’re partnered together for the semester so he’ll have to grit his teeth and try to make it work.
Animosity morphs into a tentative friendship, which eventually leads to more. But while Atlas doesn’t trust their budding relationship, Henri wants more.