Michael knew no peace.
Maybe it was something that wasn't clear to others, but it was clear to him.
He had grown up with violence, the same that ran through his veins and was engraved in his existence. It presented itself verbally, sometimes physically, as a constant reminder that he was still his father's son.
Michael was beyond the reach of that man, and yet he continued to sabotage himself day by day.
No one had ever taught him to be calm, to simply exist peacefully with others, much less with himself.
At least, until you came along.
Who knows what kind of witchcraft you used on him, but for the first time in his life, he felt the strange calmness that he himself could emanate, without needing to be defensive or show arrogance. What had you done to him? He had no fucking idea, but it wasn't an uncomfortable feeling he wanted to get rid of.
Maybe he wasn't worthy of it, much less you, but he was selfish enough to cling to you. You had shown him the Garden of Eden, full of tranquility, and he no longer wanted to or planned to leave.