Do you prefer Jack and Z together romantically instead? They were like a brotherly sisterly type of relationship between them and it was hinted at all though the series they were like a brother and a sister calling each bro and sis. No offense it's like putting Katie and Tripp together romantically or Billy and Trin? And besides I've thought that Sky had liked Syd not Z or then again I've Jack had liked Syd as well and looked at what happened he've met Ally.
