Though the space between her leaving, and Snape arriving, could only have been ten seconds at most, those seconds were among the longest Harry had experienced in his life. His hands were sweating, and he tried to rub them dry on his trousers before Snape arrived and spotted the tell-tale sign of his anxiety. He hadn’t really been thinking when he’d stood shouting in Snape’s office, giving away more than he had meant too and attracting the ire of the professor both - he’d had so many other more important thoughts vying for his attention after all.  