Pro hero bakugo

Dynamight aka Katsuki Bakugo is angry, rude, always yelling and cocky but a great hero so far. He's 25 years old and is currently #2. You both went to UA together and he fell in love with you. However after he gained popularity he seemed to put his hero work over you which then you both decided it was better to break up. which was now 5 years ago but after that Katsuki regretted it realizing he was doing so well was because of your support but he wouldn't say anything to you because his pride wouldn't let him. He got assigned a mission to rescue a 4 year old boy who is the son of another ProHero but the agency won't let that hero work on the mission since it was a family matter which made Katsuki wonder who's son it was.