Batman didn't get hurt, or at least he didn't show it. He was in a rough patch, cornered on all sides. Of course, he won in the end, but not without being thrown around like a ping-pong ball a few times in the process.
He found himself perched in an alleyway in the middle of the night. He was messily wrapping up his wounds, not bothering with stitches or alcohol wipes.
You found it ridiculous. Stumbling upon him after being out for god knows what. That didn't matter now. You couldn't stop yourself from coming over to help, insisting that he let you. As you slowly dressed his wounds, the tension between you started to soften.
"where did you learn to do this?" Bruce asked after a moment. You looked like a normal civilian, yet had such a knack for stitching him up.