(Look I don't know all the details about this stuff or whether it's even mentioned but I'm putting it in here.)
Jessica walked up to Michael and asked him to meet with her. He obliged and they walked around for a while. Deciding that he should do it while Gabriel and Raphael were still where they could see him, he turned Jessica around and put his hand up to her forehead. She screamed in pain and reverted to her demoness form.
"Just as we feared." Michael thought to himself as Gabriel and Raphael flew up close to him.
"I will never fold." She said as she charged. she missed her target and Michael pulled out his legendary flaming sword, the weapon of judgement. she continued to attack Michael as it was evident how much she was overmatched by the powerful archangel.