Thanks everyone for your lovely comments!
I hear what people are saying & will learn from this for sure. I'm quite socially awkward (suspect I'm autistic as well) but in our old town, the school mums were super forthcoming & always suggesting playdates etc & as we'd known them since reception, the relationships just developed without me having to do much if that makes sense!
But where we've moved to, the parents aren't like that at all - nobody seems to have playdates or do much out of school, DD was the oldest at holiday club every day. But she really craves that interaction so I'm having to put myself out there which I find super uncomfortable.
So in my head I was just like well I wouldn't be so easygoing with DD but if the mum is then that's up to her, I know her DD will be safe with me & if she gets upset and wants to go home then I could get her home within the hour.
But I didn't anticipate this so have learnt a lesson for sure!!
DDs totally fine, she feels sorry for her friend because she's missing out on all the fun but that's it really - really proud of how she's dealt with it, she struggles with things not being how she'd imagined/ planned so I'm really surprised & impressed!!
I did brave the high ropes today and they were horrific lol!
Anyway, I got this reply from the mum... not sure tbh, she's usually an oversharer & unless somebody had been rushed to hospital or something I think I'd have taken the 30 seconds to message yesterday & say she couldn't come, even if I'd received bad news.
Butttt maybe it's sometning super awful, I guess I can't know for sure. Plus I was dreading the school run if she was still completely blanking me so at least it won't have to be super awkward - haven't replied yet but I think I'll just wish them well & be more wary in future.