After the trailer dropped on Monday for Colton Underwood’s new Netflix series, “Coming Out Colton,” a source exclusively told Page Six that his ex Cassie Randolph is frustrated that their tumultuous breakup is being rehashed. .

Former “Bachelor” lead Underwood, 29, handed his final rose to Randolph, 26, while filming the Season 23 finale of the ABC reality show in late 2018.

In the preview for “Coming Out Colton” — which details Underwood’s experience entering the gay community — the former football player admits he put Randolph “through hell” because of his “own insecurities” about his sexuality. .

Although Randolph would rather not be a peripheral character on “Coming Out Colton,” she is pleased to see that Underwood seems remorseful

The first source noted that it’s a “complicated situation” for Randolph, who may have worries about the way she’s discussed on “Coming Out Colton,” but is nonetheless thrilled that Underwood may be able to help others struggling to come out. 

“At her core, Cassie supports Colton telling his story if that helps him and other people in the LGBTQIA+ community,” said the insider

These days, Randolph — who does not maintain communication with Underwood — is coupled up with musician Brighton Reinhardt, with whom she became Instagram official in August. 

Brighton is such a great boyfriend and she is grateful to have found love with him even after all the trouble she experienced with Colton and ‘The Bachelor,’” the source explained. 

Reps for Randolph, Underwood and Netflix were not immediately available when contacted by Page Six for comment.