Oct. 27 (UPI) -- Popular medical drama Grey's Anatomy has lost another series regular.
"I loved that we were able to give Riggs a happy ending worthy of his character and talent," Rhimes said.
"As for Martin, this is not an ending for our relationship," she added. "He has been part of the Shondaland family since the pilot of Inside the Box and he will always be family. I can't wait to find a new project to work with him on in the future."
Thursday's episode explored the history between Riggs, Dr. Owen Hunt (Kevin McKidd) and Owen's sister, Dr. Megan Hunt (Abigail Spencer), including Nathan's original proposal to Megan and how he cheated on her. It also showed Megan driving to meet Nathan and her son, Farouk, in the present day after accepting Nathan's second proposal.
"I love Nathan and Farouk eating their food by the ocean. Scared. Not knowing. But just... trusting they'll figure it out. #GreysAnatomy #TGIT," Rhimes tweeted.
The episode also featured Owen returning home to Seattle, where he and wife Amelia Shepherd (Caterina Scorsone) mutually decided to end their marriage. The split leaves Owen free to potentially explore a romance with Teddy Altman (Kim Raver).
"Sometimes we have to breakup with an ideal for a happy. A real happy. A feel-it-in-your-fingers happy. #GreysAnatomy #TGIT," Rhimes wrote.