Something about this feels... strange, no pun intended, to Ness, something in Wanda's manner seeming put on in a way she can't place. It makes her hesitate, but then.... Stephen trusts Wanda, and Ness trusts Stephen. He wouldn't throw her to the wolves at this point, not without confirmation that she's untrustworthy—and if he was concerned about that, he wouldn't put anyone else in a position to have to do something about it themselves. She approached him; neutralizing her, if it comes to that, is his responsibility.

So: she can trust Wanda, he said, and she trusts Stephen.

"He said you could gather more information. Presumably to exonerate me of lying? And the rest of my group, as well."

Ness hasn't moved any closer to Wanda, but she hasn't backed away, either. Her nerves are more than apparent, anxious wringing of her hands and picking at her cuticles a dead giveaway, but she's just as clearly trying to be brave. She hasn't looked away from Wanda. She wants to appear as trustworthy as she knows herself to be.

She trusts Stephen, so she trusts Wanda—even though the latter feels like one of the hardest things he's ever asked her to do.