Yes, true, but: what if she is someone who is simply working as a stripper?
Perhaps it is like this: she discovered over the years a talent for taking her clothes off, and so, one day, reflecting on the career choices ahead of her, decided to go pro. It was a reasonable choice: lucrative, not especially arduous (besides the small detail of needing to wall off a certain part of herself in order to maintain her sanity). It's her job, but it's not her calling.
The heart of your challenge is this: she is someone who is an expert at being looked at without being seen. This is her defense against the hardship of her job. How, then, can you win her heart, when she cannot trust that it is even truly she and not a shadow whom you wish to love?