Amanda Seyfried and Ryan Phillippe have split just a day after the actress faced the media and defended the actor over reports he was snubbed by Rihanna at a party.
 
Reports suggested Phillippe tried to chat Rihanna up at a bash earlier this month, and she turned down his advances. Seyfried quickly dismissed the story as false, saying, "That Rihanna story is not true. That is so f***ing not true!"
 
Now, a source tells UsMagazine.com the couple has split after three months.
 
The insider says, "They are not dating anymore, and it's not a big deal for either of them."
 
The "Mamma Mia!" actress embarked on a romance with the hunk after splitting from Brit Dominic Cooper.