[ There's a flash of anger she didn't expect. Surprise, yes - but she has been so scared, felt so alone, and all this time...
There's only one thing she can think to say. ]
You didn't need Gaius's help to save the druid boy.
[ A pause. She considers telling him that she had suspected, or perhaps hoped, as much. But instead: ]
You could have told me.
[ Part of her knows it's not a fair thing to say. She is Uther's ward, after all, and Merlin but a servant. But she's hurt to find that she trusted him and he did not afford her the same courtesy. ]