Earlier in post, there were some posters who for some odd reason assumed she wasn't a senior and used that as part of their reasoning for why it would be ok to have her move out. I didn't see where that idea she's not that old anyways, was coming from, but now that we know she is quite elderly, there are several issues that should be seen in that context. What a 56 year old issues are is diferent than an 80 yr old.....
*** ask her if she will see a doctor soon, to see if anything medical especially SENIOR related is causing the irritability.....she's nearly 80, she is in and even past the age where some issues like this start to kick in....
Please consider this, there is no downside to her seeing a doctor, everyone is hurriedly talking about apartment hunting.....I would hit the pause button and sit down to consider the reality of her old age and the senior care issues, those are the reality. Alot diferent than helping a young person find an apartment
There are social services and elder care agencies that can help you....especially an agency that's specifically to help seniors, they know what issues relate to seniors and advocate for their well being so they probably have alot of info on medically related issues, such as depression in seniors, early onset dementia, if any of these turn out to be one of the issues,whatever all those are plus housing, legal etc