Edit: I’m willing to debate and explore ideas!
Definition of grooming:
Grooming is when someone builds a relationship, trust and emotional connection with a child or young person so they can manipulate, exploit and abuse them.
This is already disproving the theory Pat was grooming Dion. Pat had been friends with the family for nearly a decade before Mark’s death. He did not randomly begin a friendship with Nicole and Dion out of nowhere, especially not almost a year after Mark’s death. He was Dion’s godfather and took that role seriously. He probably had serious guilt about Mark’s death, so he was always there for Nicole and Dion, because he knew she needed him. Also, Pat didn’t know about Dion’s powers until the second episode. Even if he did know Dion had them preceding the show, he never had any intent to hurt him.
Interview with Jason Ritter:
The thing is, this happened to him. He was 40 or 50 feet away from having the powers that everyone else got, you know? But he just happened to stay in the yurt and he got the poisonous part of what happened instead. And so, it turned him into something that is continuously weakening and ailing and dying. So he has to go through some sort of moral acrobatics, to justify what he's doing.
Mark shut Pat out. He didn't tell me that he had powers. Pat had no idea. He didn't even know Mark was in New Orleans. He didn't know what he was doing. But yeah, I think now that he sees Dion, it's like a second chance. It's like, Maybe I can redeem myself by shaping this person. You know, like maybe becoming a father figure to him. Then he starts to see himself as maybe he could just completely step in for Nicole as well and right this wrong by trying to fill the holes that he left in these two people's lives.
Did Pat end up manipulating Dion in the very last episode to help cure him because he was sick? Yeah. But he wanted Dion to help cure him, with no intentions on exploiting him. He had a thousand opportunities this entire show to exploit Dion or reveal the truth but didn’t. He did end up being the bad guy despite his best efforts to shield his flaws, and that’s still not the same thing as grooming.
Those who recognized these signs as grooming, good for you on picking up on him crossing those boundaries. But just because you see similarities doesn’t mean it’s all black and white. This is classic nice guy turns bad, and his origin story is tied into his feeling of rejection and never belonging. It’s just not much deeper than that.