of -- a big hollywood split. A power couple. Clint and dina eastwood. She filed for legal separation after 17 years of marriage. Today, we're learning more about what may have been behind the breakup.... See More
of -- a big hollywood split. A power couple. Clint and dina eastwood. She filed for legal separation after 17 years of marriage. Today, we're learning more about what may have been behind the breakup. Abc's aditi roy has the story. Reporter: They seemed to have a rock-solid marriage. Clint eastwood and his former tv anchor wife, dina, lived far from the glare of hollywood and red carpet, in the affluent seaside town of caramel, california. Married for 17 years. The couple seemed in love and happy. Now, dina has filed for separation from clint. And the pair is reportedly embroiled in a complicated love quartet. "People" magazine reports trouble began brewing in the marriage last year, when dina did the e! Reality show, "mrs. Eastwood and company," against her husband's wishes. The show did put some pressure on the marriage. And while it was airing, the marriage essentially started to fall apart. Reporter: The notoriously private oscar winner even seemed uncomfortable when he appeared on the show. I'll go get the car. And I'll just pull up in front. Thank you. I'd appreciate that. Sources told "people" magazine that he was furious. And he doesn't like the fact that his daughters were now on tv. Reporter: Sources tell "people" magazine, by the middle of last year, the eastwoods were living in separate rooms of their caramel home. And he stopped wearing his wedding ring. As the rift between them grew, "people" says dina sought comfort from a former high school flame what was finalizing his own divorce. And his wife of ten years began dating clint. The two couples have reportedly swapped partners. When things go bad in marriages, it is extremely common for individuals to reach out to old flames and to feel comforted by relationships that they had had in the past. Reporter: Abc news reached out to reps for clint and dina. Neither would comment. Dina has tweeted, I don't like reading negative things about clint. He is a wonderful, good-natured, brilliant person. No matter what I attest to that. The iconic hero of the wild west, now entangled in a love drama. For "good morning america," aditi roy, abc news, san francisco.
This transcript has been automatically generated and may not be 100% accurate.