Why didn't Alexis duel her brother Atticus in Yu-Gi-Oh! GX episode 27? | tcgmode

When we first encounter Alexis at the abandoned dorm, she mentions how she is currently looking for her brother around episodes 5 & 6. So when we do meet Atticus or rather Nightshroud, why isn't Alexis didn't dueling him since she has a much stronger connection to this plot point of the sto...