sorry for the delay, but that's perfect! piercing is such an intense story but the set itself seems to have been pretty chill so i'm sure there would've been a lot of room for them to become friendly. as for sundance, the awkwardness mentioned was probably just that seb and leah were hooking up during it. they'd been hooking up on and off since summer 2016 (they've been friends since like 2009ish though) including when they were filming piercing in february 2017. they were trying to keep it on the dl, but because of that there was likely some weird tension during interviews while they tried to not make it obvious that they were into each other. it's up to you if you think she would've noticed any of that at all though!