So my friend A and I decided to go shopping tomorrow, and my friend B is the kind of person that loves to be involve in everything, and get angry when she didn't get invited. But because A and I live really close to each other, we sometimes went without much planning and didn't invite B which make B angry. This happened a few times before. And this time we decided not to tell her so she won't be angry. A said it will be fine if none of us said anything, but A and B are good friends who tell each other everything. And I'm scared that A will tell B that we went shopping without her, and said that I wanted to keep it a secret from her.(She doesn't always tell the truth because she wants B to like her, this had happened before)
I don't know what should I do, I want to go shopping with A and I don't want to tell B. But I don't want B to get angry if A tells her. What can I do?
更新1:
We didn't invite B because she lives too far, and it's such short noticed she won't be able to come. But if she knows that we are going somewhere, and she couldn't come, she will get really angry and we will start a argument. It happened so many times.
