Several days went by, but Dooku didn't return.
Satine was starting to believe he never would. She was also starting to believe everything he'd told her, especially from their most recent dialogues, to be true.
A shiver ran up her spine. Her nights - already wrecked by unfathomable nightmare - had become unbearably long, bringing fear and angst along. Satine felt trapped. And not just physically so.
Dooku's inflamed words resonated in her head, never leaving her alone. A new galactic order. Real peace (not that watered down pacifism she pursued - he'd said). A despotic rule of (un)law. Loss of countless sentients' identities in order for this new state of affairs to be fulfilled. And, worst of all: no one would impose this, but it would be the peoples of the galaxy - at the end of a deadly war - to ask for it, be it due to misery or, more often, unawareness.
The process had been unraveling for a long time and, according to Dooku, it could not be stopped.
Through the fog of everything she'd learned from their interactions regarding the political fate of the galaxy, one thing haunted her most of all: the price of blood the new order asked of its scapegoats.
In times of hardship, scapegoats are in "high demand". If Dooku appeared to be ranting or sounded excessively rhetorical at times, she couldn't say the same about the clarity he outlined the "Jedi's role" in the project with. With mixed contempt, dread and fatalistic acceptance, he detailed her their fate. And she was filled with terror, both on a galactic and a personal level.
Then, Dooku's first prophecy (the attempt on his life) had seemingly come true, with him never returning. Satine knew Dooku had no reason - at that point in time where he was building his own exit plan - not to return to Serenno, and to her.
Therefore, she began to prepare herself for the "Apocalypse". While doing so, she feared that, no matter how big her efforts, they wouldn't be enough to save herself, or Obi-Wan. She was dead scared of losing him - one of the few people whom she thought of as close to her. Despite everything, she hadn't doubted his loyalty for a minute. At that point, being heavily pregnant, she wasn't making grand plans, she mostly cared about what she - with her limited means - could do. Everything else would come later, after the baby came and she'd recovered some more.
She was frustrated, and running out of time. Two of the seven droids who regularly visited her had gone missing while trying to tamper with the control panel of her mechanical door. A third one had been destroyed by a security mechanism right under her eyes, as it agreed to help her. She didn't know if her plans to break out would work, and even if they eventually did, she wasn't sure what she should do next. Go to Mandalore seeking Bo-Katan's help, now that the sister showed signs of reconciliation? Dive head first into what she understood to be a priority, that is, the search for Obi-Wan? Try and summon other potential allies from the Neutral Systems?
Then, there was the complicating factor of her still fragile health, coupled with the prospect of an imminent birth. According to the medical droids, she only had a handful of days left. Would she give birth in her prison, there, as a captive? She didn't wish that.
Also, the sensation of impending danger crippled her with fear. She didn't know if who had eliminated Dooku would come look for evidence of his betrayal. Look for her.
However, Satine needed not worry too long about her captivity, because one day, suddenly and without any forewarning, the prison door sprang open.