This is brilliant Eve , but I don’t know why territorial Always pops to my mind , Isn’t it a New brain theme ? 
I guess it has two sides too, because she felt attacked from one side of the conflict and the othet side was her territory invasion and frustration in love relationship with him which both are a cerebral cortex new brain theme , it definitely was regeneration but I’ll check the wiki for the bladder and come back to you and let me know what you-think too :)
And yes looking at the diagnosis and antibiotic use that means it’s a bacterial infection ( regeneration of old brain theme) but remember that also misdiagnosis is possible and also it could be both viral and bacterial infections happening at the sane time holding the regeneration characteristics of both old brain and cerebral cortex , I definitely think of both here ! 
-Not safe / old brain 
-Being trapped in the footstool is also a territory invasion 
-she feels her boundaries are not respected and her personal space is invaded / this is a cerebral cortex territory invasion conflict
I guess by exploring more with her you can tell if the territorial side of thr conflict is in regeneration too or still in the stress phase , it could be a stress new brain phase ( because you mentioned in her thoughts that she said I can’t give him this last bit of me) and a regeneration old brain ( because she had sex after six years ) 
Or could be as i told you before regeneration of both with a viral and bacterial infection that you can confirm with her going deeper into her feelings and beliefs as well as the characteristics of each phase.

Also in this case There’s a family constellation that could be explored I guess :)

You did a great job Eve in both, thanks for sharing these two very interesting case studies , it’s nice to share different point of views :)