Cocoa is Jen's roommate and a close friend. When Jen starts to question if her artwork is even making a difference and if it's worth endangering their lives by doing so, Cocoa tries to cheer her up and point out she is making a difference. However, a dejected Jen appears to not hear this last part.
Jen is Vance's classmate, having first met in an art class Vance signed up for as he wanted to see naked women.
While the two have yet to formally meet, Frey discovered Jen in some videos while he was busy erasing his and Vance's activities from the same night and proceeded to investigate and learned her real identity. Jen as of yet is unaware of this.
While Jen doesn't know Robin by name (and perhaps not even gender as Robin was in disguise), Jen appears to have taken Robin's words to heart during their brief meeting.