I had a friend. Let's call her Lucy. We both have 2 daughters similar ages. Basically she has form for being flakey. Making plans and then cancelling them. Her DD was due to have a birthday party at the weekend but has now cancelled as her DD apparently wanted to change plans! No mention of rearranging anything. She did this with her younger daughters birthday last year. AIBU to pull away from her as she is unreliable and flakey? Luckily I hadn't told my daughter that the party was happening at all, so I don't have to disappoint her. But we had somewhat booked this in the diary. I'm prepared to be told AIBU but it's the 4 or 5 time she has said she'll do stuff and then change her mind.