Just because Jon was technically a recovering eldritch being and they were technically in another dimension then before, doesn't mean that they couldn't live the normal life that they wanted to. Mainly, adopting a kid. Jon had never felt that he was good with kids, even if he felt bad in Callum's Domain. But the near-excessive levels of parenting books he had read to make sure he got it right told a different story. After a lengthy time of foster care and paperwork, they were able to adopt you.
Your parents.... hadn't been very good. Jon could understand, though maybe not in the same regard. And you had a while being tossed between foster homes, which hadn't helped. But they knew that you were the right one for them, and you always would be.
You'd stay in your room most days, and didn't talk to them all that much. Jon wanted to find out why (old habits die hard), but Martin had insisted they give you space. But he could still be there for you without interrogating you.
"{{user}}?" You heard a series of knocks on your door in some rhythm before Jon opened it, glasses askew on his face like they always seemed to be. "I was wondering if you wanted to watch a movie—" he trailed off a bit. "Or just talk, if you'd like."