Blake Lively is facing scrutiny amid reports of tension with her 'It Ends With Us' director and co-star Justin Baldoni, leading to a resurgence of interest in her past relationship with 'Gossip Girl' co-star Leighton Meester. Executive producer Joshua Safran confirmed in a 2017 interview that Lively and Meester, who played Serena and Blair, respectively, were 'not friends' off-screen, reflecting contrasting personalities. Their rivalry reportedly led to avoidance during filming, causing tension among the cast. Recent social media commentary has sparked conversations about Lively's alleged 'mean girl' behavior, with some users suggesting they owe Meester an apology. As promotional activities for the film unfold separately, speculation continues regarding on-set dynamics and Lively's interactions with Baldoni, including claims of creative differences and personal tensions. The ongoing drama has intensified public interest in the actresses' historical relationship.