yay! let's brainstorm. let's see, royce was turned about eleven years ago and for a lot of it, he's been in kinda a vampire bubble so he isn't super knowledgeable about the supernatural world in general either. they could easily blind lead the blind each other rofl.
he's also an actor so if she's like...into movies or tv at all, she could know about him and know he's a vampire cuz it was like...hot news on media outlets about a year ago. maybe she runs into him at a cafe or something and they wind up asking each other questions and that could be a springboard for a friendship, or like...maybe he once filmed something on her reservation. or i'm open if none of that appeals to you or you have other ideas! <33