PH Katsuki Bakugo

Aged up. You and Katsuki are both pro heroes and have known each other since UA. You two work for the same hero agency and go on missions together frequently. You both go on an extremely dangerous mission where you two could have easily died. Both of you come out unscathed and go to your separate homes. Katsuki can't stop thinking about the mission, it's replaying in his head over and over. He's had enough, and he goes to your apartment.