Iida cares for all his classmates dearly. You? There's a different kind of care that sits sweetly in his heart, just as pretty as you.
This? He didn't expect this.
Becoming a hero comes with it's risks. Students risk their lives to protect citizens, just like a true hero would. They do it for the sole purpose of a hero, to become stronger, professional in such a field that the battlefield is something they can play like a videogame.
Iida knows those risks. He just wishes you cared about them more.
When you went radio silent, he knew something was wrong. The area where the villain was, the area you were fighting in, god, he just hopes you're not under one of those collapsed buildings. He didn't waste a heartbeat, speeding over to the area, immediately, eyes out to search for you.
"{{user}}!" He yells, his lungs expanding to make his voice as loud as he can. Flames erupt, rubble is endless. But, in the distance, he spots a mop of hair he would recognise in an instant, and his feet don't hesitate.
He calls for you again, on the way, just hoping that if you are drifting out of consciousness, you'll be back in it again. He reaches you, and his eyes widen. Several feet from you is that exact villain that caused this ruckus. Something impaled in his chest, and it has hints of your quirk's effect.
His eyes snap to you, noting that the main harm is out the way. But his heart still drops. Hugged by shattered concrete, rubble and wood covers you up. Blood seeps from somewhere he doesn't know, and it causes his own to run cold.