Escape Vect? I think not. Probably because she will not want to escape. If slave is personal plaything of Vect he must break her will already. I guess feeding process for Vect is not just prolonged phisical torture, but geniuos destroying the soul of another being.
Remember tale The Torturer.
Thats what he is. Stockholm syndrom and all that.
Even if this slave was somehow separated from Vect, this poor thing is far less than it was before being captured.