Last October they met for the first time at a Halloween party hosted by Kate Hudson.
Now, after 7 months together, they’ve decided to split.
“It was mutual,” a source tells Us Weekly. “They were never fully committed. There’s no bad blood. They’re cool.”
Last February, after only four months of dating, they put an end to their love affair, only to get back together a few days later.
In March, when the announcement that Ryan was the father of his ex-girlfriend Alexis Knapp’s baby, due this month, Amanda stayed by his side throughout.
Phillippe was married to Reese Witherspoon, with whom he has two children, Ava, 11, and Deacon, 7, while Seyfried was previously linked to Mamma Mia! co-star Dominic Cooper.