I'm in a local outdoors group - hiking, camping, wild swimming and climbing. Overall it's a fantastic group of people, but one woman in the group lies, manipulates, and says nasty things about people in the group. She uses people to gain access to the most popular members of the group and has also cruelly dropped people who thought she was a good friend with no explanation when she thinks they're no longer the most popular members of the group.
She can't stand it if she's not involved in every single thing - even things outside of the group. She quizzes people on where they've been, who they've seen, what their plans are etc to make sure she's not missing out on anything.
I can't drop this woman - she's part of the group and I need to keep things friendly. She has caused trouble for people before when they've refused to answer her questions. So I'm looking for ways to deflect and avoid answering questions about where I've been and who I've seen - ideally in as friendly a manner as possible. Any ideas please?