When he had barged in and saw her in the towel his first reaction was to blush like never before. He had seen other women naked before, but there was something different this time. It was her. She was something special to him and seeing her like that had actually made him speechless for a moment. So much so that he stood there for a moment, not even moving after she had made her way back into the bathroom.
After several moments his brain caught up with him and he instantly started apologizing. "I am sorry...I thought you were hurt" he said, making sure his tone was loud enough for her to hear through the door.