It looks like Eva Mendes, 39, and Ryan Gosling, 33, are headed for a break up and the reasons for the split come down to commitment issues and insecurities.

"The Place Beyond the Pines" stars who began dating when they met on the set of the 2011 film are reportedly ready to go their separate ways.

According to Hollywood Life, a source told OK! Magazine, "Eva said the relationship had just run its course," adding, "There wasn't a lot to say. He was everything you're supposed to want in a guy - great on paper - but she felt like something was missing."

Apparently one of the reasons Ryan Gosling and Eva Mendes are considering the break up is due to the actress' refusal to get married to her boyfriend.

The insider hinted, "Maybe that's the commitment-phobe in her," adding, "Ryan wanted more, and then realized that it just wasn't going to happen."

The source also revealed that the relationship took a turn for the worst when Gosling's ex-girlfriend and "The Notebook" costar, Rachel McAdams, reached out to him after her split from Michael Sheen in February 2013.

The insider, confessed, "Eva's always been paranoid about [Rachel]," adding, "so when Rachel reached out to Ryan, Eva flipped out."

If Ryan Gosling and Eva Mendes break up, we can only hope that he goes running back to Rachel McAdams.

What are your thoughts on the possible Ryan Gosling and Eva Mendes split? Let us know your thoughts in the comment section below.