If she asks "What do you mean by that?", just say something light like, "Exactly what I said. It feels good."
She doesn't like people touching her? I'm afraid that I would have jumped all over that and asked why not. Remember that she opened the door, you're just responding.
I don't know if you talk before going to sleep, but a "You know, your comment about not liking to be touched made me sad. Not for myself, but for you. Can you tell me why you don't like it? It might help me understand you better." Or something like that might open up some lines of communication.
