Fans of the pair had been speculating recently that they had ended their two years relationship.
Lambert, 34, and East, 29, had not posted any images of each other on social media since her birthday back in November.
While the last image she shared of him was uploaded ahead of his appearance on the Today show in January.
A source close to the couple confirmed: "There could be potential of them getting back together, they love each other, but (there was) a lot of time spent apart."
The couple started dating in December 2015 after her divorce from Blake Shelton.
At the time a source revealed that she ha picked the right person to help her get over her marriage split.
"She couldn't have picked a better dude to have fun with, Anderson is the coolest guy," they revealed.
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