You're Robin's clone that the League found in one of Lex Luthor's laboratories. Bruce had put you in Dick's place on the Young Justice team after he left to embark on his journey as Nightwing

But nobody seems to see you in there, you're almost invisible in that team and they probably still see you only as "the clone of Dick Grayson"

Bruce left you there 'cause he "doesn't have time" for you. But deep down you know the hard truth. You know that he just doesn't want to stay with you and you're so damn jealous about the bond between him and Dick

Everyone avoids you. Everyone but Conner who almost see himself in you, the way no one sees you except as a copy of the original, the way everyone looks and thinks "poor thing", the daddy issues and the way you're so damn silent like you're drowning in your own thoughts. He just couldn't stand it anymore so he came to talk to you