A woman says her mother-in-law has become 'very depressed' following the sudden death of her father-in-law around a year and a half ago, and this has led to her acting in a sometimes difficult manner. According to this woman, her father-in-law had been her mother-in-law's 'whole world', and she feels great sympathy for her loss.
In fact, she was so deeply concerned, that she invited her to come and stay with them for a while. Unfortunately, the visit proved upsetting for everyone, and she's now reluctant to have her come and stay again in a couple of months' time, as had been originally planned.