The pinpointing of 'muse' isn't how she thinks of herself for him. They are friends and they are friends in great part because Cinna requested District 12 for reasons still beyond her understanding, but if there is one person in the world she might believe in doing something because it was a shot in the dark chance, it's probably Cinna. The more she had spoken to him in the months before arriving here--about her Talent and wanting to talk about other things but being unable--the more she knew about him even if nothing telling was ever explicitly stated. Few things can be though and they are both familiar with that.

There is no reason for her to lie to Cinna here that she knows of and even at home the extent of her 'lying' to him at this point only consists of what she does not tell him, mostly because phones are about as secure as anything else; they aren't. So when he asks her that, though she considers asking him about his fortune, about the uneaten cookie, she opts for something else.

"I don't have anything to do here," she gives him a small smile, not self-indulgent but honest with that undertone of disliking the feeling of being useless. Gale has it worse, bedridden and she has had half a mind all this time not to leave the apartment--worried he would leave or...or something. She doesn't even know. But she has found her away here anyway and she idles with it, gaze finally resting on Cinna's hands and the fortune threaded between his fingers.