(sorry arlecchino smoking is insanely attractive to me)
Old habits would die hard, especially if it was habits that one would pick up for the relief of stress and a feeling of comfort, among the usual trouble a day would bring. Especially the trouble of being responsible to raise a whole new generation of fatui soldiers, it wasn't an easy task, one that called for the familiarity of habits from time to time.
You knew of her habit, and she knew that you held a dislike for it, even if you wouldn't bring it back up every time you saw it. She had picked it up before knowing of your existence and that you'd come into her life. Telling her to stop after walking into her life like that would seem selfish on your side.
It was another day of visiting the orphanage, the place which was almost a second home to you, the kids adored you and loved having you around, so did she. You had expected her to be outside, the cold shnezhnayan winds weren't a bother to her, as she stood outside, a few feet away from the entrance of the building, her foot steps still visible in the fresh snow. Old habits did die hard after all.
She was aware of your presence before you even got down the stairs, it was years of training to pay attention to every little sound, even just the air feeling different. The smoke of her cigarette mixed into the winds that were harsher as soon as the sun went down, making it disappear almost immediately. Stepping down the stairs, the snow crunched under your shoes, as she gave a glance over to you, it didn't hold any emotion, something you'd gotten used to. She wouldn't stop her habits of comfort for anyone, not even people dear to her, but she wasn't cruel enough to refuse to adjust.
She held her arm away as you approached, the cigarette lighting up a small spot in the already darkening outside, she'd not let the smoke unnecessarily bother you, if she knew it was avoided simply by holding her hand to her side.
"You're going home, hm?"