Amanda Seyfried and Justin Long Break Up After Two Years

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Another one of Hollywood's "it" couples has called it quits.
ET confirms that Amanda Seyfried and Justin Long have broken up after being together for two years.

The newly single Seyfried was all smiles at an Oceana event in Beverly Hills, California on Monday night, and was even spotted by an ET onlooker casually chatting with a man who appeared to be Newsroom star Thomas Sadoski. Seyfried and Sadoski starred in the off-Broadway play The Way We Get By this past spring.
WATCH: Amanda Seyfried Chops Off Her Hair for Locks of Love

"She seemed really happy and having a great time," said an onlooker at the event. "Seyfried certainly didn't seem upset."
Us Weekly was the first to report the split, and a source close to couple told the magazine that Long is "really heartbroken."
During an interview in the June 2015 issue of Vogue magazine, Seyfried revealed how she hit on Long after becoming a fan of his social media posts.
"I followed him on Instagram, and I thought something he said was really funny," she recalled. "It was a beautiful picture of a snail, and the caption said, 'F**king MOOOOOOOOVE.' It made me laugh out loud, so I texted him."
Photo: Instagram
Back then, she told the magazine that their relationship "just feels right."
"I really do have my own identity, both inside and outside the relationship, if that makes any sense," she explained.
She then added, "It's also really good to feel OK being alone."
This wouldn't be Seyfried's first public breakup. She had a three-year relationship with her Mama Mia! co-star Dominic Cooper before splitting in 2010. Long, 37, previously dated Kate Mara and Drew Barrymore.
"I keep feeling like my eggs are dying off," she told Marie Claire magazine. "I need to get on it. I want a child. Badly. I want to be a mother, badly. That's what I feel. I've been feeling it for like, two years."