>>> substance reliant
IOW: she's a drug addict.? So just say so.? Don't obfuscate.
>>> high-end... escort
IOW: she's a high-price prostitute.? Again, just say so.? Don't obfuscate.
>>anti-social
Better: sociopath
>>celling
Better: in jail with
>>must withstand the emotional provocation.
This places her in the role of a passive victim with the sociopath in the driver's seat of the plot.? But a protagonist must be proactive, the character who is driving the plot.
Finally, enduring emotional abuse is a complication, but it is not the solution to her primary dramatic problem, her need to win her freedom.? ? Further the logline overlooks a greater aggravating factor of her incarceration than being locked up with a sociopath: the emotional turmoil of withdrawal symptoms because she can't obtain her next fix.
Anyway, for her to win her freedom:
1] Someone outside must post her bail.
2] Or the investigating detective must drop charges.
3] Or a lawyer must successfully defend her if charges aren't dropped and her case goes to trial.
In all 3 scenarios, winning her freedom is contingent on the actions of others. She's not in the driver's seat of the plot.? She's merely a passenger in the plot.?The logline needs to be framed with the protagonist? as a proactive character, the character in the driver's seat of the plot.
Finally, what's your point in constructing this scenario?? Through all the iterations of your story idea, what is the common denominator, the theme you wish to dramatize?? What's the subtext, the reason why you want to put her through this ordeal?
fwiw