Essentially the same as comic book Tim who became Red Robin. Was adopted by Bruce Wayne after his father and mother were both killed infront of him. He and Bruce/Batman developed an extremely close bond like father and son and in Tim’s case: borderline obsession. But it was dangerous due to their lives and circumstances. In his timeline, he was witness to Bruce being murdered by Joker during a horrible miscalculation and was traumatized by these events. This was the catalyst for his downfall as a proper Robin and caused him to pull away from the Batfamily and go his separate way from Damian and Dick Grayson. He became slightly mentally and emotionally unstable and these traits can manifest at random and not always the best time.
He was taught by Cassandra Cain [former Batgirl, currently Black Bat] and thus has a soft spot for any and all Cassandras he meets. He carries around one of Batman’s old batarangs with him at all times.