Sandra was greatly annoyed at the fact that Xander and Harry didn't choose to go through the unexplored path.
She kind of felt bad that the two boys would die in this place. She kind of had eyes for out for Xander but he'll die eventually.
Since she found out that the game became real She was extremely scared. She always avoided monsters for fear of dying and always chose to play it safe.
She of all people, a game maniac and a skilled person with the sword was scared because she had something to live for. Everyone does.
She was extremely excited when the new game 'League of Guardians' came out. Since her father was the owner of the one of the best gaming technology companies in the world, she naturally used the best.
However, comfort was all in vain when the game didn't allow her to log out anymore. And what's worse, pain could be felt in the game so she tried to avoid that as possible.