I have a friend (A) who I've known for 25 years, she is part of a group from school (Myself, A, B, C and D.) We would occasionally do things collectively but I would usually see A and the other girls individually. A and I have been close over the years and haven't had any fallouts.
In April of this year I confronted one of the group (B) about her behaviour because she is really horrible about people (saying nasty, judgemental things about people's parenting, children and achievements.) B had broken my trust a few years ago by talking behind my back, and my tolerance had worn down. B has said some awful things about A as recently as this year, but A doesnt know - I didn't tell A what B had said because I didn't want to see A hurt. B and I haven't spoken since the exchange in April and are unlikely to again.
In May there was a situation where B refused to take her kids to the same birthday party as my child was going to (I was happy to go and be civil but then said that I wouldn't go to try to make things easier but B was still insisting that my child, aged 2, and her children, 4 and 2 couldn't be there together), resulting in the host (our mutual friend C) uninviting everyone from the friendship group, including A.
After this, in early June, A refused to come my child's birthday party because no one had been able to go to C's child's. It felt like A was blaming me for what had happened when it was B who tried to force C to choose which children to have at her child's party. C didn't blame me at all and brought her child to my child's party.
A told me said that she needed space, this was the beginning of June. I then messaged her a month later to see how she was and she didn't respond. I then left it and sent her a birthday message in September, again no response. Last night I was thinking about A and I looked at our WhatsApp chat. It looks as though she blocked me a while ago and the birthday message didn't go through. I think that I'm still blocked because I can't see I can't see her profile photo. I texted her last night (maybe I shouldn't have!!), to check in but yet again no response.
A has behaved completely differently to C and D, who have acknowledged that B can be really really awful about people. While C and D are upset with the changes caused by my and B's relationship breakdown, they do understand and respect my decision. I have seen both of them recently and we are in regular contact.
AIBU to think that A has been unreasonable, and that she isn't a good friend?