Answer: I am not 100% sure but here it goes:
So, we know that Todoroki’s father was allergic to cats, OR SO WE THOUGHT?!?! WE KNOW THAT HE THINKS CATS ARE FOR PU**IES, OR DOES HE?!?! ACTUALLY HE HAD A CAT WHEN HE WAS EXACTLY 9.317842 YEARS OLD, AND ONE NIGHT WHEN HE WAS HOME ALONE, HE WAS LOOKING FOR HIM, ( THE CATS NAME WAS MR.TEDDY WINKLES GLITTER BUTT) MR.TEDDY WINKLES GLITTER BUTT WAS HIDING BEHIND THE CURTAINS, AND WHEN HE LOOK BEHIND THE CURTAINS TO SEE IF HE WAS THEIR, THE CAT ATTACKED HIM, AND FROM THAT MOMENT, HE HAS BEEN DEATHLY AFRAID OF CATS. THAT IS WHY HE PRETENDS TO BE ALLERGIC TO CATS, THAT IS ALSO WHY HE SAYS CAT ARE FOR PU**IES.
Explanation: hope this helps :D
