Am I wrong to let Mom think that moving to an Assisted Living facility will allow her to be the caregiver that she once enjoyed being?

Mom lives in an independent facility, but she needs to be in AL. She begs me to find her someone to sit with, etc. She says, "See if you can find an older person or couple that needs an honest person like me to sit with them and take care of them. I'm even willing to go live with them." So, the thought occurred to me that this may be how I get her into AL. I explained that if she moved to such a place (where she can be a caregiver, herself) she could eat her meals with others in a big dining room and she could visit with other people who enjoy the same things she does. She told me that she would love that! This Thursday Mom has an appointment with a neuropsychologist for the "big test" to determine what stage she is in and, hopefully, pinpoint her diagnosis. (Her neurologist believes she has Vascular dementia without behavioral issues.) I am totally swinging at a ball in the dark. I don't know what to do. Maybe I'll have better clarity after her test. Also, Mom is now having delusions, which is something I plan on talking with the doctor about. Any suggestions you can offer are greatly appreciated. Thank you all in advance.