Good luck, traumatic times ahead
We had this with the mother-in-law.
She was admitted to hospital on a voluntary basis and ended up unable to communicate with anyone in a very short space of time.
We desperately wanted her sectioned as it would've meant that the hospital could "force" the medication on her which she wasn't taking.
In the end, she was sectioned and we could agree to her having EST which resulted in a near miraculous recovery.
Mental problems are so very difficult to deal with for all concerned. Best wishes to you.