may be trying to win over in the wake of her split from , but it seems the Good Will Hunting star is standing firm in his loyalty to his longtime friend. According to an insider, has been attempting to stay in good graces with 's inner circle, but isn't having it. A source exclusively told In Touch that , 53, isn't falling for Lopez's efforts.

"Matt's loyalty to Ben is unshakable," the source explained. Despite 's attempts to maintain a friendly rapport with Affleck's friends post-breakup, Damon remains firmly aligned with his best buddy. "It's important to her to stay in good graces with Ben's friends, even after the breakup," the insider added.

"But Matt has never been close with J. Lo and is firmly on Team Affleck, no matter how hard she tries to get on his good side." Matt Damon Stands by His Best Friend and 's friendship goes back decades, with the two having grown up together in Cambridge, Massachusetts, and later rising to fame as co-writers and stars of the Oscar-winning film Good Will Hunting.

Their bond has weathered the highs and lows of Hollywood, and it seems that even 's high-profile split with isn't enough to shake their friendship. For , maintaining relationships with 's friends could be important in keeping peace during the turbulent divorce process. However, has made it clear that his loyalty remains with , regardless of any attempts to mend fences from 's side.

While has navigated public breakups in the past, it appears that this time, winning over Affleck'.