Lol. I was just rereading Harry Potter, and it made me think of this.
Chris in high school seems a lot like Peter Pettigrew at Hogwarts. For Chris, the Marauders gang he became a part of ( James, Sirius, Lupin) was sort of like the gal-pals. It doesn't really say in the books, but I get the sense James+ Sirius kind of felt sorry for Pete and liked the admiration he gave them, even if they didn't really consider him a true "friend". I think the gal-pals treated Chris in a similar way too. Also, if any Voldemort was ever going to go after the gal-pals, and Chris was their secret keeper, Chris would spill the beans right away.