Should I attend to this friends get together or is not worth it?

Tomorrow I was indirectly invited to a frormer classmates gathering at some night bar with music on the site. The classmtes attending are some I had also had gathered in the past like 5 years, not often but just from time to time. I said I was indirectly invited becauase the invitation was sent to all my generation of classmates in a Whatassp chat group I am, so the invitation is open this time unlike otehr times where some get togethers are not for all the classmates because there are some classmates that have their own respective groups separate. and they gathered on their own and not invite everyone when it is their own group.

Anyway the one who sent this time the invitation is part of a close group I was and that I had gathered in the past with our close group of 7 ladies. For some reason when the pandemic started these ladies from my group simply change and I dont know even why. We all agreed (my group) that when things normalized we will all go out again. I even attempted to organize get togethers like encourage them to set something again when things wer starting to normalize and they all agreed that yes "it is time to meet up again in person" Well it seems my attempts failed cause noone i when the time was passing, noone seem interested in meet up again, noone follow up any of my attempts. So I let go and I did not text the group again to set up anything.

But during this time we were not gathering, I found out that some of these friends from my group were meeting on their own without telling the other ones from my group. (not fair!!) I discoverd that through a Facebook photo last may when I saw 3 ladies of my group at some bar hanging out and they were with other fromer classmates from the same generation that are not of our group. And after that photo days later they posted another photo from another get togehter, the same ladies who are gathering on their own without

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telling the other of our same group.

I even spoken to the other ones of the group that had not been invited and they said "Yes I was also not invited either to those gatherings" They are gaterhing lately and not invited us. We dont know why if those ladies are mad at us for something or what. But it is odd because how could they be upset or if we did something wrong if we never had seen each other in person during the pandemic anyway, we only had one virtual meeting and it was ok.
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Anyway, today there is this gathering in this bar with live music and this time the one organizing (a friend of our group) extended the invitation to all teh generation. I want to go but then I dont want to give these chicks the satisfaction to see me when they had been disregarding me in the past and not invite me or other ones from the group when they are gathering on their own and not telling the rest of our close group.
Should I attend to this friends get together or is not worth it?
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