I've known her for ten years and she's always been a bit flaky (she sets up meet ups, invites us over then the day or two days before her kids are unwell or she's got another reason not to meet up). I usually find out the day after that her dcs are well again and I feel a bit stupid. I've never really said anything though, just gone along with it because I value her friendship.
Three weeks ago my friend wanted to 'book' me and my dcs in for a playdate at her house in half term. It was a long way in advance but I agreed, my middle dc loves my friend's dd and my dd has had a horrible time at school with bullying do was looking forward to this meet up.
A week after my friend messaged to say she'd double booked us and they were going to an event in the city. She said we could come too if we wanted, she sent us the link and told us how to register. I agreed and booked this, my dcs were really excited about it. My dd in particular was very excited and I had booked a day off work so we could go.
Late last night friend messaged to say she thought she'd booked her tickets but she'd just checked and she hadn't. She said she couldn't book now because they were sold out. When I checked I saw there were tickets free, she then said she'd overscheduled and her dcs would be too tired to go.
I sent a message saying my dcs would be disappointed and that I would think carefully about planning something with her again. This was literally it, about two sentences. This then led to my friend sending two very long rants on WhatsApp about how she needed to put her children first, I was being difficult, she'd helped me so much through bereavement (I am still dealing with loss of my dh). I hadn't replied to this but she then removed my dcs from a sports group she runs and told us to find 'something else to do'. It was all very nasty and I'm shocked, I've paid my friend more than the fee for the group each time because my dcs love it so much. I've never asked for anything from her, she's offered help with childcare but I wouldn't accept it because I don't want to put on her.
My dd has very few friends and will be heartbroken. AIBU to think this reaction is totally disproportionate to a short message saying I was a bit unhappy about her cancelling again?