The girl realizes that there's nobody around right now. That it's just her, alone on a quiet, lonely walk in the countryside.
So she lets herself relax, and lets the truth burst out, scaled and shining, from her back. She feels the wind. She remembers what she is, and reminds herself of what she is not.
It is relief. Peace. Calm. Even if just for a moment, she can stop... Pretending.
Her scales return, in patches, across her skin. Beneath them, she feels safer, less exposed. She can't let go fully, even now - human clothes are expensive, after all - but soon, she'll find a safe place to do so. It's something relatively new to her; yet even in that moment of discovery and revelation not too long ago, it felt incredibly familiar.
A gentle wind blows, and fills her wings with cool air. She looks up through teary eyes and smiles.
Despite everything - all the worry, all the hiding, and that stifled feeling on bad days when she cant let it out,
She is so very thankful to know the truth.

(thank you