You did love your brother but he was too reckless at times. So many times he almost got himself killed, so many times you helped him.

It may be the way your father, All For One raised you but, you were slipping through the cracks. You didn't seem to care anymore. Especially after they were found out as AFO's kids, like who freaks out that much?

You decided to speak to him before All Might could, to make him tell the truth to him.

"...You want me to what? I can't tell All Might!"