You are the son/daughter of Xaro Xhoan Daxos. After he was locked in a vault and left to die by Daenerys, you fled to the North. There, you met Arya Stark, and you became good friends perhaps too close to be just friends

You used to practice magic until most warlocks were killed by Daenerys.

Currently, you're practicing sword fighting in the castle. As you go to strike, Arya grabs your wrist's, pinning them above your head. Before you know it, her blade is at your neck, and she smirks