I'm in charge organizing a biweekly board game night for our department.  My \[friend\] wanted to organize a video/board game event, and the time slot I have is super convenient for this sort of thing. This \[friend\] reached out to me asking to combine the two events at some point in the future to both help get the word out about his event and to get this convenient time slot.  I agreed, and even offered to bring some department-owned board games usually used for my board game night and my personal switch to the event to help with supplies.

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A couple of days later, my \[friend\] informs me that his event was filling up, changes the time of his event to start and end earlier than my board game night usually does, and indicated that I should probably still hold my regular board game night to help with demand.  I'm totally fine with this, and just point out that I will have to leave his event early with a couple of the department board games for my board game night.  I say that I specifically will be bringing back a game (Codenames), since it has been popular at my game night in the past.

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Fast forward to two days before \[friend\]'s event.  I check that everything is still going forward.  \[friend\] says I didn't fill out an RSVP form, his event is totally full, and so I probably can't come.  (Aside: I saw the RSVP form but didn't respond, since I figured I was automatically on the list due to my participation.  I didn't clarify this, but should have).  I say fine, but I was still planning to come to bring the games and my switch.  \[friend\] says he will bring his own stuff and leave department games alone (indicating that I'm no longer invited?  I should have asked explicitly, but that's certainly how I felt).  People later ask if I'm going to \[friend\]'s event because I'm the game person, and I say I was 'uninvited'.  Because we're both super busy, we don't have more chance to talk about this after this somewhat frosty exchange.

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On the night of the event, I don't attend (of course), and go to pick up department games for my board game night.  Codenames, which I specifically pointed out I wanted, was not there.  \[friend\] isn't responding, and I didn't have time to go retrieve it from his event before my board game night starts.  Codenames is immediately requested, but I have no way to get it, so we make do with other games.  \[friend\] comes by our board game night much later carrying Codenames and a couple of other games.  Other friends ask how \[friend\]'s event went, when I chime in that I specifically wanted Codenames, essentially calling him out right then and there.  

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Other friends weren't impressed with my comments about Codenames and being 'uninvited'.  I'm still annoyed with \[friend\] for what I see as a poorly managed event and leaving me out of the loop, but get that my communication could have been better.  AITA?