"david-schwimmer"

Aniston appeared alongside Lisa Kudrow, Courteney Cox, Matt LeBlanc, David Schwimmer, and the late Matthew Perry, who died in October 2023 at age 54, in the show.

"Out of the remaining five, Jen and Courteney (Cox) are reeling the most, and Jen is probably the one who is struggling most acutely" said the source.

"After the reunion, it became clear that reminiscing over the past had stirred up feelings for both of them and that chemistry they'd always had to bury was still there," a source told Closer, reports foxnews.com.

Taking to her Instagram story, Courteney wrote, “Happy Birthday to this GEM of a human being” and tagged Matt along with a string of heart emojis.

Friends: The Reunion, which was released in May this year, scored nomination for outstanding pre-recorded variety special -- eventually giving recognition to actor Courteney Cox.

As per People magazine, Schwimmer, who played Ross Gellar in the hit sitcom, confirmed in an interview on SiriusXM's Radio Andy on Wednesday that the upcoming HBO Max special, which will bring the core cast back together, will be taping soon.