I have a hard time trusting people, so that thought popped up in mind. But, as shy and introverted as she is around me, that is not the typical personality of somebody that is cheating. Now, the ex could still have a hold on her... That could definitely be it and she could be torn on what to do. This girl is just so shy and nervous. the first time I gave her a ride back to her car, she was literally shaking and was blushing.