Longtime couple Chaz Bono and his fiancée, Jennifer Elia, engaged since earlier this year, have pulled the plug on their relationship.

The pair first got together before Chaz, 42, famously transitioned from female to male, and while Elia supported him through the ordeal and his stint on 'Dancing with the Stars,' friends say the relationship fell apart awhile back.

"Chaz has been living in the guest house for some time now," an insider said. "Both of them had been in therapy to try and save this relationship, but in the end, it became clear to both Chaz and Elia that this wasn't going to work."

The couple's publicist released a statement that said in part, "They leave this relationship with great love, respect and affection towards one another ... No further amplification will be forthcoming and they ask that you respect their privacy at this time."