Izuku led a normal life, until he met Todoroki shouto. [Check out my first Katsudeku, it'll be like this] All fanart credit to the artist

Katsuki/izuku/todoroki Todoroki cheats on izuku and leaves him broken and surprisingly his first heartbreak is the one to help him.

He clenched his fists. Red eyes becoming glazed. "Why'd it have to be you of all people." He growled. "Not you, Deku." His voice cracked slightly. I quickly looked down. I didn't want to see his expression. It'd probably hurt me too much. "Please... Not you," Unlike his usual voice that was filled with annoyance and aggressiveness, he sounded distressed. I stole a glance at him. I watched as tears had spilled down from his eyes. Kacchan never cries. Ever. ... No Quirks AU