Wanda was still reeling from surprise when her brother appeared and it took her a moment to process what he'd said. She couldn't even properly explain what had happened because she didn't really know. "I am, but the kitchen-" she gestured to silverware and appliances and metal bits on the floor near the walls, "Not so much."
When Tony spoke she turned to him and her confusion became horror as she shook her head and pointed an accusatory finger at the tiara lying on the counter, the epicenter of this madness. "I'm so sorry, Tony, I don't know what I did. I was just pulling it off and I must have hit a button and everything just flew back." She pushed out her hands for emphasis, though the illustration wasn't really necessary given the state of the kitchen. "I guess there's a- what- repulsion radius?" she asked. That was the only explanation she could come up with and it made sense if that was how the tiara worked, but it would have been really useful to have known that sooner.