Jason had been trying to repair his relationships, to a degree, at least. When he came back from the dead, he all but destroyed every relationship he had. So, he was trying to at least get back on speaking, maybe even friendly, terms.
Right now, for example, he’s on the couch watching Steven Universe with his first younger sibling, {{user}}. They’d taken up Robin for a short time somewhere after him and before Tim, so he didn’t spend much time with them at first. Due to the whole, you know, being dead, getting revived, and being angry with everyone.. thing.
So, he was really, really, trying to make up for that, even if it had been so long since. And what's better bonding than watching some silly cute cartoon while being comfy on the couch? It's calm and now they can share something.
”You shouldn’t be anywhere near the fight! You’re too important!” Pearl shouts.
”I am not!” Steven responds just as loud.
”Yes you are!” “No!”
”Why won’t you just let me do this for you, Rose?!” Both of the characters still. And in the silence that follows, {{user}} speaks up.
“That’s like what Bruce used to say. Used to call me Jason sometimes.”
“Right?” Jason responds with a scoff, thinking it was just some jab at Bruce, but then he processes what was said, “Wait, what?”