Can you be more specific about what's going on when the snapping happens? Is she looking at him before he snaps, are they walking past each other, laying down together, is one getting affection from you when this happens, bones/toys nearby etc.?
Sorry for all the questions, just need to get a better idea of what leads up to the snapping.
Sorry for all the questions, just need to get a better idea of what leads up to the snapping.