Her dark gaze shifted to Clark for a moment and she shook her head. "There's no problem. Wyatt here was just leaving." She was momentarily distracted as Wyatt explained about binding his powers. "That could be done, sure, but it's so easy to unbind them that you don't want it to happen at the...wrong moment." Meaning, from what she could tell, you didn't want his powers coming back while he was in the middle of sex with his girlfriend.
That was when Clark asked about the necklace. She glanced down to it, then gave a light half shrug. "Picked it up the other day while shopping. Does it really matter?" As Wyatt tried to actually lecture her, she turned towards him with a smirk.
"You can't stop me, Wyatt. I'll use magic when and however I like."