Well according to the blf story, it is pretty clear that gulmohar needs to be lifted out of this mess and while jassi knows that though armaan might have resigned from him post, he is still affiliated to his father's company and will do all to fish it out of the trouble. She hence thinks that he is probably looking out for an opportunity to get her help again to prove himself.
Well even if she understands that Armaan is trying to show that he has changed, she is too scared to trust anyone again as she has been cheated by many. On the same note, I would feel sorry for Armaan as well, as his story has become more or less like the boy who cried wolf!!!!!!!