The day after my sister's husband died my mom fell down 9 steps and was hospitalized with bruises but no breaks. Already beginning dementia her memory has seriously deteriorated since the fall and she's been moved from her home of 40 years to a retirement community. In the 2 months my mom has been there my sister has only visited 2 times and she never calls. Is it unrealistic of me to expect a few visits and calls from her to my mom? My sister has 4 children from 10 to 21 and a gas station she needs to run.