She was not kept as a "slave". She was a girl from a blue-collar background who found herself in a world of glamour and entitlement. She stayed because walking away from all of that is hard when you come from a blue-collar background. I doubt anyone forced her to do anything, but doing stuff would have been a condition for remaining in that world. That was the implicit deal she made, but now doesn't want to accept responsibility for.
Ready access to money and power is not something most people give up if they can avoid it, it is like a drug, once you have had it and gotten used to it, it is not so easy doing without it. She "left" because Epstein got bored with her, that is what it boils down to. Her current bitterness stems from being ejected from that world of privilege IMO. A lot of what she is saying now appears somewhat outlandish and does not seem very credible to me, it seems more to do with getting money out of him and selling her story.
