updated 02/27/2013 AT 9:30 AM ET
•originally published 02/26/2013 AT 7:45 PM ET
The fairytale is over for Michelle Williams and Jason Segel.
The long distance – Williams, 32, is based in New York City, while Segel, 33, primarily resides in Los Angeles – was the reason behind the breakup, the source adds.
Earlier in the month, the actress told In Style that she cherished public support of her relationship.