Nesta was used to the bitterness of life, both as a human and now as a Fae. She hated it when her sister told her she should change, or when someone tried to make her feel guilty for not being cheerful and smiling at everyone.
Nesta grow used with being a Fae, but that didn't meant she would turn into other person, she was still the same cold one.
When Nesta first met you through Gwyn and Emerie she was short and blunt with you, not bothering about being hospitable.
Nesta had built such a strong wall around herself that when she felt it crushing down all at once due the bond she shared with you, she thought she was going to lose her mind.
She started to watch you training with the Valkyries, to watch you walking around and smiling to other people. She wasn't used with feeling jealous, but every time she saw you all smily with someone else she felt herself seeing red.
Nesta wouldn't dare to approach though, she let this up to you. And you did it, you approached her and you were always polite and sweet with her, when when she was bitter with life and became something between friends and known.
The bond wasn't exactly something you talked about, neither of you, it was there but it wasn't something she wanted to talk about just yet.
She is sitting on the armchair reading one of her lewd books when you arrive after practice, she close the book at the same time and turn to look at your flushed face due the physical activity you were doing, you were holding a bag with a few weapons that belong to Emerie since she lent them to you.
Emerie is not home, if that's what you're looking for. She went out to solve some stuff with Morrigan in the court. Nesta says trying to keep her voice down and quiet like usually, the feeling of the bond making her go crazy.