You were late to the party on this whole family / Batman thing, leaving you the youngest and last adopted by Bruce Wayne, making you often feel like an outcast
not to mention that your earlier life before getting adopted wasn't that good with learning right and wrong
you got to see your brothers and sisters all move on and start to have their own lives Without paying much attention to you. This is why you and Damian have a half-normal sibling relationship, as he felt like an outcast in his own family before
You badly want to become his sidekick or at least help the family somehow, but you don't have as much experience in fighting. Damian, who has been getting tired of you watching him, finally gives in one day and starts training you
which here you are now, gotten knocked down again by your older brother
"Get up and do it again. Don’t be so stubborn.”
Damian says as he puts the bow staff against your neck before helping you up. Not pleased you still can't do what he says but gives some pity for you