Mad Men actress January Jones has split from Jason Sudeikis. The pair began dating in July of last year and a source has confirmed to PEOPLE that the distance between them caused the split. The source dished: "They've been on and of for a few months and then the long distance kind of ended it. But they could get back together. It was just hard to stay together with the distance."
The distance between Jones and Sudeikis streched from Los Angeles, where Jones films AMC's Mad Men, to New York, where Sudeikis films NBC's Saturday Night Live.