Kyle Richards shed new light on her split from Mauricio Umansky during Part 3 of The Real Housewives of Bevery Hills reunion.

RHOBH's Kyle Richards drops a bombshell about Mauricio Umansky's airport photos kissing another woman. See what she revealed.

The subject came up during a group trip to Saint Lucia, shortly after photos surfaced of Richards' estranged husband ... "That's a girlfriend." Boz then shared that she gave Kyle a "full report ...

Kyle was part of a discussion about Mauricio dating new women. The subject came up during a group trip to Saint Lucia, shortly after photos surfaced of Richards' estranged husband kissing another ...

Her work has previously appeared in The New York Times, Rolling Stone, Vanity Fair, Vogue and more. Morgan Wade and Kyle Richards ... she winks at the camera. Richards' husband Mauricio Umansky ...