Bruce Jenner's Ex-Playmate Friend Breaks Down In Tears ...

One of Bruce Jenner's friends -- a former Playboy Playmate -- couldn't hold back her emotions about his transition ... and the impact he's having on society.

Deborah Driggs -- Miss March 1990 -- told us she's known Bruce for years, and admitted outside Spago Saturday night ... she couldn't hold back the water works when we asked her about the ABC special.