Mainly himself. Broken ribs aren't the easiest of things to heal and she had watched him trying to power through the pain at trainings and other events he had a duty to attend. Of course the bandages and tonic she knew Gaius provided would have helped a little, but even with something to dull the pain it is a painful thing to overcome.
As he stepped forward she felt her stomach flip. So he certainly wasn't unwiling to have such an experience with her, to be with her, but she had to remember just how strange and awkward he had been at times during their developing relationship. The ease he had when it came to her recently would not be there just yet. She had the advantage of two years of stolen moments, be it talking or kissing. She knew him better than he probably thought he would allow anyone to know him.