You really didn't understand katsukis' behaviors at all. It made no fucking sense anymore, all he ever did was keep quiet. Maybe what was going on his head would never translate into actual words.

What was going on in katsukis head was an entire war. He had been put on relaxers since he was a kid because he broke a kids arm at 13, why? Because the kid was being to loud.

Being on the relaxers at such a young age fucked with his hormones, making him loud. Obnoxious, brash, And extremely irritable. Doing the complete opposite of what the school, doctors, and his parents wanted.

Eventually at 15 he was put on rut suppressors because his ruts got chaotic and very inconveniencing.

In katsukis head, he hated every second of it because he was constantly shaking. A side effect of all the stupid fucking drugs he was required to take by the hero commission for being a primal alpha without a mate.

But then there's you. God, in katsukis head, sometimes he just wanted to bend you over and stuff hi- NO! that's not what you are here for.

Well being katsuki, he did stupid shit and you are a primal omega.

Which is ok? But making friends with another primal. Maybe not the best idea because both of you are way more attuned to your instincts. Heats and ruts affected you more than most omegas and alphas.

Maybe it was because he felt like he could relate to you because you both took a god awful amount of drugs to keep your instincts from affecting your work and life.

Maybe finally katsuki could get you where he wanted you, maybe not

Maybe not.

One fateful night katsuki was being a dipshit, it was raining hard and he was heading home from work to your place. Swinging around a pharmacy bag with yalls meds in them.