Ben Higgins is clearly not over his ex JoJo Fletcher.

After the former Bachelor called off his wedding to fiancée Lauren Bushnell last month, sources reveal exclusively to Life & Style that Ben, 28, is still talking to JoJo, 26, behind her back!

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"Ben has been secretly calling JoJo ever since Lauren moved in with him in April," a source says. "They talked every three or four weeks at first, but it's become more frequent since the wedding was was canceled."

ben higgins jojo fletcher lauren bushnell getty images

Meanwhile, former Bachelorette JoJo is still engaged to her pick Jordan Rodgers — and he has no idea she is secretly talking to her ex.

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"She’s not happy in her relationship with him,” the source says. “Jordan is absolutely clueless about the calls."

Yikes! For more Bachelor gossip, pick up the latest issue of Life & Style, on newsstands now! And scroll through the gallery below for photos of JoJo and Jordan.