Glitch in the matrix?

So I ed a weird phenomenon that happened to me and it involves undertale so here we go.

I was in my grandparents house on a Saturday a few years ago. my cousin was there too, he was watching something on my grandma's laptop

I was minding my own business untill he called me. He wanted to show me a video, an animation he was really enthusiastic about

It was a glitchtale episode (the first one maybe?) he even showed me a video with the episode still in progress alongside with the finished one

You see I only got interested in undertale around September last year when I bought the game out of boredom. this incident happened two or three years ago, so I just shrugged it off and called it 'cool' and continued what I was doing

I forgot this happened and ed it when I watched glitchtale.

When I saw my cousin again I asked him if he knows the game, He said no. I told him the story of him showing me animated series, He told me that he doesn't that he did that

This got me wondering if that incident was real

Was it my brother? No impossible. Sure he loves the game as much as I do but I'm the one that introduced it to him

Was it my sister? No. I'm definitely sure that the one that showed me the video was a boy.

Was it my imagination? Definitely not. I the video so clearly and when I watched it again it was the same one from my memory, every frickin part of it

So... does anyone has an idea of what happened that day?

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