She's was probably of the mentality that they'd let her return to her status and position from before the war.
She seems to value her freedom above everything else and would rather do something stupid because it was her idea rather than something that someone else is forcing her to choose.
Based on her silhouette winding up in BD's court in The Answer with the same gem placement, she's probably a fairly high class gem and likely didn't really have too many responsibilities. She'd likely grown accustomed on that freedom and 5000 years imprisoned didn't really shape that mentality in a healthy way.
Yeah, she does things for bad reasons, but it's not because she's unreasonable, it's likely because she's desperate to return to her old life.