Severus had indeed been busy. With the new term upon him, and the work that the Dark lord had been placing on him recently, well, he didn't have quite time for much. Even his journal had been discarded in his locked desk, for weeks it seemed now. As he walked to his quarters he made a mental note that he would have to look upon his journal to see what had been going on in the world around him, plus, it was always amusing to see what his students wrote about.
He opened the door and noticed the quietness of the room. He walked over to his armchair and sat down hoping to relieve the stress of the day, when he heard a small noise. A noise so small that most people wouldn't have noticed, but he thought he was alone, surely Jessica was still down at the labs cleaning. He hadn't seen much of Jessica either the past few weeks, which was a shame since the girl had been slightly growing on him.
He stood up to follow the noise and found it coming from the adjoining door to Jessica's room. So she was in her room, after all. The closer he brought his ear to the door the louder the noise became until he could discern small gasping noises from the other side. Was she crying.
He sighed and lightly tapped on the door. He could always just walk in, even if her door was locked. He was a wizard, after all, but he was raised to respect a lady's privacy.