i had it that they didn't know each other so much as zeke essentially just got a random phone call from him like, "hey wanna be in my movie?" and zeke was mostly just like WOULD YOU ALSO LIKE MY FIRST BORN???? but he would come on any future trips! also all of his los angeles friends aren't really in la and haven't been most of the time he's been filming (i have him wrapping on nov 19th) so they could easily have been spending some down time together during the show.