He was testing her, reaching out gently at the magnetic field that surrounded her and weaved into her powers. She really was Lorna, he'd come to that conclusion pretty quickly, but whether she was the same Lorna he remembered was different entirely.
Had he tried to find her? Erik hadn't answered her question because it was insulting to them both. Of course he had tried to find her. But had things that kept him tied to this world, and while his abilities allowed him some space travel it was quite taxing. He would have had to ask Charles and his students for help to take it any further than this solar system, and he wasn't willing to bring them into family business. Despite how often the Summers boys insisted on doing just that.
He took a seat across from Lorna and waited for her to either continue walking away--he'd pulled his hold on her power back entirely, she had the freedom to--or take a seat in front of him.