I just keep thinking the Mafia when I think of Monica' story line, I am not sure I feel that Eva maybe in danger though but you never know, we all had thoughts before Entwined came out and they never appears so you never know maybe we will be better with our theories in Captivated.
Â
I don't like how they all keep secrets from Eva and treat her like a kid, she is a grown woman, doing Krav Maga and quite savy herself so if she knew the truth I think she would feel a bit more confident in herself that people are trusting her with stuff and like you said she can keep her guard up