Reservation is to be expected. Truth be told she would probably not put quite so much effort into getting Jack on her side if it wasn't for Ianto — it's a curious thing how one part of a couple can act so differently to the other.
"Observing." She smiles, warm and approachable. "Polyamory isn't a concept that exists in my culture, on account of it being the only option available."
A little sliver of personal information, an olive branch if you'd like and knowing what she knows about him, she has high hopes that it'll pique his interest.