MTO SHOCK ATLANTA HOUSEWIVES EXCLUSIVE: One Of The Cast Members . . . Had A 'NERVOUS BREAKDOWN' . . . During Reunion Filming!!!

Atlanta_Housewives_Moves1 was LIVE AND CENTER at the Atlanta Housewives reunion filming in ATLANTA last night - and we got some TEA TO SPILL.

The reunion had a LOT od drama, a lot of tears and a lot of folks getting CONFRONTED.

But probably the most memorable moment from the evening was when Cynthia's ex-husband Peter had what many are calling a "Nervous Breakdown" on the stage.

We're told that Peter BURST OUT crying and stumbled off the set. We're told that people were "worried" about his behavior. And paramedics were called to assist him.

And yes, it was caught on tape.

Developing. . . .