She recently called the police to report her purse stolen and two days later remembered that she hid it. She accuses my husband and I of going into her house and swapping her "good" things with lesser items and we constantly get into arguments about this. She still pays her bills, shops, cooks, cleans and is very independent. I cannot get her to go to her doctor about this because she says it is everyone else but not her. We are all getting very frustrated and angry over this situation. How do we handle this behavior?