January Jones and Jason Sudeikis Break Up

NEW YORK (CBS) "Mad Men" actress January Jones and "Saturday Night Live" funnyman Jason Sudeikis have reportedly called it quits.

"They've been on and off for a few months and then the long distance kind of ended it," a source told People magazine.

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Jones, who walked the red carpet solo in a daring red Versace gown at Sunday's Golden Globe Awards, lives in Los Angeles, where "Mad Men" is filmed, while Sudeikis is based in New York City.

"They could get back together. It was just hard to stay together with the distance," the source added.

The two were first romantically linked last July after they were spotted getting cozy at an ESPY after party.