I also can't really give you a diagnosis, but I'll say a couple things. If you're a mean person, you probably don't stab teddy bears just cause you're mean, right? And she does a lot of these things when she goes off of her meds as you said also, that's also an indication that she's not like that all the time. It may be bipolar, or something akin to it. The point is, and I think what you're looking for, is that your aunt doesn't hate you, based on what you are saying. It just sounds like she isn't well and needs some help. But you need to do what is right for you, and if keeping distance is what's right for you, then that's what you need to do.