Multiple folks upthread had mentioned that they didn’t necessarily find it odd CP’s parents took off so quickly in said RV for Alaska (trip may have been planned well in advance, prepaid RV park reservations may have been made, someone gave the opinion that they are the step grandparents so perhaps not as close to Sebastian, etc).
I find it interesting, then, that CP’s mother so promptly showed up at the house (one of the first) to offer presence, support, whatever else … Seemingly showing she cares a great deal for Sebastian, yet, after that, seemingly in great contrast to that action, she is fine with just taking off in RV for Alaska.
JMO.