Jason knew that he was untrustworthy, there was no good reason to trust someone who'd caused so much hurt, so much suffering. He'd killed a kids parents right in front of him without even blinking twice, not realizing what he'd done until it was too late. Who was he? He was no hero. He was the damned Red Hood, and underneath it all, just some scared little boy from crime alley who was forced unto a second chance at life by the League of assassins.
Jason did not deserve this second chance he was given, he'd used it for so many terrible things. He'd hurt Tim, and Bruce, and countless others without remorse. And yet they still welcomed him with open arms in the hopes he'd come to his senses and see their way. But they were all wrong. He was never going to see things their way, the way he was doing was the only way that brought real results. PERMANENT results.
Jason was not going to sacrifice his pride for some semblance of normalcy, a family. At least he had you, you never judged him. Even after all the horrible things he did you never told him lies, you never told him it was okay. You stayed, and you still cared about him. But you had never once tried to change him. He stood there watching you wash dishes when he got back from patrol, he managed to find his voice, "You're up late."