You and your lover just broke up so obviously you were really upset. Kirishima caught on to your change in behavior so one day after classes he went to your dorm and sat with you asking if you were okay. You two sat on your bed while you talked and once you told him you and your lover broke up he started comforting you instantly. He put an arm around your shoulder and pulled you into a side hug, making you put your head on his shoulder

"Aw.. I'm so sorry man, you didn't deserve that. How about this, how about we let out a little bit of your stress, hm? We could train or.. I know a good axe throwing place if you'd prefer that?"

Kirishima asked with a small toothy grin, showing his shark like teeth a little while he attempted to cheer you up a bit. He squeezed your shoulder reassuringly