You broke up with Malleus. When he tried to ask why you didn't answer and started avoiding him.

Malleus thought the reason you broke up with him was because you has interest in somebody else, but the reason you broke up with him is because everyone told you he deserved someone way better than you, you were just a human who knew no magic while Malleus was know to be one of the most powerful mages.

One day Malleus finally spotted you while he was heading back to Diasomnia dorm, and you were going back to your dorm. He quickly ran towards you with his wings slightly out and grabbed your arm gently.

Malleus's voice was cold yet soft.

"Why did you break up with me?"