Oh dear, I did imagine (and wrote about) Alhaitham not attending his own graduation because no one would be there anyway. (I'll post a screenshot and link on twt!) but the idea of 4grravate throwing a graduation party for him later on is so endearing. 🥹🥹

As for your idea, I imagine it could start like this: Kaveh, probably either drunk or tipsy during their dinner night (Haitham wasn't there for some reason) and told them that one of his biggest regrets is letting Alhaitham be alone on his graduation day, knowing full well he didn't have anyone else. (Perhaps at that time, freshly wounded and trying to get by while grieving their lost "friendship" in his own way, it didn't occur to Kaveh, or it just completely skipped his mind. Then later, when they were already on a friendlier term, the topic of graduation came up and Alhaitham just casually said "I didn't go, there was no one anyway.")

Then, later when they meet while Kaveh is sober, Tighnari mentioned about what Kaveh said that night and asked if he wanted to do anything about it? And then it would be cute if it was actually Collei's idea to throw Alhaitham a graduation party (maybe on the same day of Collei's celebration party for being accepted into the Akademiya?) So Alhaitham only knew they were going to Collei's party, only to have it turned into his (very belated) graduation party right after.

And yes, Kaveh definitely would be the one giving the speech since he was the only one who knew of Alhaitham's student days. Alhaitham would probably comment how silly it is, but he's trying so hard not to tear up. And maybe later, in the privacy of their home, Alhaitham would pull Kaveh into a hug and whisper, "Thank you."

Alright this is turning into a mini fic, thank you for the brainrot though! I love it! <333333