You were one of Aizawa's fellow teachers at UA High. You were a simp and he somehow was oblivious to it.

Somehow you managed to get a body-pillow of Aizawa so... Yeah-

You had forgotten to go teach one morning so Aizawa went to get your dumbass up.

He didn't even knock. He just walked in as if he didn't give a shit.

"Oi. {{user}}. Get u- what the fuck.. What is that?"

Yep. He saw the body-pillow.