AITAH for asking my brother not to post pictures of me?

We (20, not identical twins) just had a very bad argument about it. Overall, I just didn’t want him to post me on his instagram anymore, and his statements were: “you posted pictures of me too”, “its my instagram I post what I want” and “why do you care if my friends find you fuckable”.

For context, I am an extremely insecure person. I would be awkward at any first interaction with anyone, I care a lot what others think of me and I also feel envy of confident people. He knows this. He is the confident people. He has a partner, lots of friends, its outgoing and is always somewhere doing social stuff. I would love to have his life, I wont lie here.

Anyway, he posts a lot of it online. Im always mindful of it, of how awful I look in the pictures, always doing boring stuff, how awkward is my smile in that one, how wide my face looked in this one, and I would tell him. He always brushes it off, saying things like “you are just too negative”, “you are pretty enough, stop over analyzing it” and that stuff, so I would just have to say okay, perhaps that it is.

Yesterday, it was a bad day for me, and it carried over today. I got a bad haircut, went to a bar to have breakfast with my brother and his partner, the barista flrts with my brother and gives him a discount, and then I soend the rest of the day having to third wheel the couple because I need to be the nice brother. It was exhausting and when I today saw the pictures I wanted to disappear from this earth.

Was it the just-woken-up face, the botched haircut, the tilted smile, the crooked posture or the bony arms. I dont know but it was enough for me to just hate it all and go ask him to delete it.

His reaction was surprising for me, as I really tried to make me sound nice and understanding but he went into deffensive mode right in. Some stuff he followed up later, as the discussion turned more aggressive is: “You are always turning yourself down and I am trying to teach you how not to do that”, “you only want to be fucked and me and the whole house are trying to live together without bothering each other but you are the burden to that” and then kept criticizing old posts of mine of how I “sexualized” myself etc

Idk. Im just very hurt about it all, but also feel like he could be right. AITAH?