I found out last night the oldest sister and her youngest daughter from Australia is coming for a whopping 3 month visit here.

She'll be staying here on the 18th for 2 days and the rest at my H's other brother and his lucky(sarcastic) wife's house.

This wife has only been in the family for 4 yrs so the poor woman can handle it lol. This SIL(husbands sister) is a cross between narcissistic and Histrionic personality. She faints whenever she's overwhelmed.
She was at war with my H when his mother died and he was forbidden to go to the funeral. This sister had her youngest daughter send the most vicious email to my H. Her daughter tried to befriend my daughter on facebook but she doesn't want to be friends with her. These are people who will turn on you and then act normal when someone dies ...expecting them to forget everything they've done. She also hates dogs so Bella will be stressed out. She's also coming at this holiday time and they don't celebrate Xmas. Husband knows exactly how I feel and even joked at how he feels sorry for his brothers wife, who'll have to be hostess for 3 months.
I find it so hard to tolerate this person who I detest. Its bad enough I have to live with my husband and tolerate him. I hate being phony but I have no choice. I know she must sense my dislike but I don't think she cares at all- typical of this kind of personality. How strange that several of them are narcissists - how does that happen?? If I find it hard to be phony, how do I cope? Do I become like a psychopath who pretends to like her? After 35 yrs of this family, I'm so sick of them and their games. God help me.