Once she sustained wounds , it was her lone battle to fight . All he could do then was watch and have faith . Idleness made him feel helpless . Blind trust aside , there was no shaking the looming shadow of doubt in the back of his head .

Question: Why did he feel doubt ?
Answer: He was not sure he could trust herHe was not sure she could helpHe was not sure she could winNone of the above choices .