Since Clint and Dina Eastwood's amicable separation in June 2012, Clint has been dating Erica Tomlinson-Fisher, the ex-wife of Dina's friend Scott Fisher -- who Dina, in turn, is now casually dating, sources tell Us Weekly. Credit: Kevin Mazur/WireImage

The plot thickens! Just two days after Clint Eastwood's wife of 17 years, Dina, told Us Weekly the duo separated in June 2012, the Oscar winner, 83, was photographed in L.A. with a girlfriend, mom of two Erica Tomlinson-Fisher.

Here's where it gets crazy: Clint's flame Erica, 42, was wed until 2012 to Dina's friend of 33 years, University of Hawaii basketball coach Scott Fisher! "After Scott and Erica divorced, Erica was sure Scott was romancing Dina," says a source. "Erica called Clint's office last February to discuss her suspicions -- then he fell for her!"

Though Dina, 48 -- who lives on Clint's Carmel, California, estate while he resides in L.A. -- wasn't seeing Fisher, 50, at the time, the two have been casually dating since their exes got together, reveals a source. When called for comment, Dina told Us, "I am saddened to see photos of Clint with Ms. Tomlinson-Fisher. I look forward to new beginnings."

On Monday, Sept. 2, however, Dina took to Twitter to defend her estranged husband. "I don't like reading negative things about Clint," the Mrs. Eastwood & Company star tweeted. "He is a wonderful, good natured, brilliant person. No matter what, I attest to that."

Dina and Clint have one daughter together, Morgan, 16, and the Oscar-winning actor is also dad to seven other kids. Clint has yet to comment on his split from Dina, but his manager told Us, "I know nothing about that."