Loving a Stranger [OS - Edited]

When Kim Jongin found a victim of a hit-and-run incident, he took her to the hospital and for months he was the only one who took care of her as he never had a clue on where she lived or where her family might be. As time passed by, the more he spent time with her, the more the strange feeling inside him grew, and soon he found himself admitting that he has already fallen for her. Is it really okay to suddenly fall in love with a person that you don't even have the slightest clue on who that person is?