My Isabella Douhan (Ravenclaw 5th year) would pretty much fall into the same category as Audrey, really. She's brazen, boisterous, rebellious, belligerent, opinionated, not to mention prone to fits of rule-breaking and general temper tauntrums and are thus - to sum it up neatly - not much like your character at all. However, being muggleborn and rock fan herself, she would be all for tagging along on said muggle rock discussions with him and Jezebel.. Or something along the lines of that. So I think she'd like him somewhat because of that.

That aside all my characters are up for plottage, of course, though I'm not so sure what could be done with them.

Let me know if interested:)