Hobbes watched Mildred. He had been doing so constantly, like a hawk determining the best time to swoop in on its prey. He was fascinated with her because she seemed to be the luckiest girl in all of Weirdsister College. She seemed to acquire a new unique magical ability on a weekly basis. She was also the most naïve girl he had ever met, which made it easy for him.
That was how the young wizard was, as soon as he saw something that looked worthwhile, he investigated, and waited for the perfect time to strike. She was easily enthralled by his cunning ways, which allowed him to exploit her powers to their limits.
Then things fell through. It didn’t matter much by that point, because he was confident he could charm her again, when the need arose. She was like putty in his hands.
Everyone knew Mildred was hopeless when it came to affairs of the heart. She was lovesick for Hobbes and he didn’t want it any other way.