"Time will tell and more will be revealed."
Yes.
I don't recall how long your partner has been clean, LMN. But if it is less than one year, then from here, many of us would call the "Prince Charming" personality by another name: "Dr. Jekyll."
Dr. Jekyll is accompanied by Mr. Hyde for quite some time in an addict's early recovery.
So just keep up the excellent self-care, and wait and see. I hope he continues to regain his higher self. But as you say, you will be okay, no matter what.