DEAR ABBY : Two years ago, my mom invited all of my family on an international trip during the month of October. One year ago, my sister called me asking if I could “cover some things” for her. When I agreed and asked why, she said she and our parents were going on the international trip four months early. I was shocked.

No one had said the departure date was being moved up. When I asked my other sister about it, she was also still under the impression we were going in October. When I brought it up to my mom, she got very defensive and said we were all invited to come. No, we were not! The plans changed, and only one sister and her family were included.

They are on the trip now, and I don’t want any part of it. They are posting pictures to our family group chat, and I have decided not

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