While it's not related to Chris banging Barb, there's another interesting piece of foreshadowing all the way back in 2009. When asked in a Mumble call what he'd do if he couldn't live in Barb's house anymore, Chris smugly told Clyde he'd just beg another family member to take him in.
View attachment 2395665
Fast-forward 12 fucking years, that's exactly what he tried to do, and when he was promptly turned down he had no other option but to sleep in his car. Despite all the donations he got over the years, he never bothered saving any of it for an emergency or making any backup plans. Chris just expected things would work themselves out like he always did.