Andy Cohen brings all the OC ladies together for an explosive three-part reunion.
The RHOC star fires back at Lydia McLaughlin
Vicki believes if one partner cheats, everything is over.
Alexis shares questionable behavior she saw from Gretchen.
The housewives are bored to tears by Alexis' sob story--especially Vicki.
Vicki talks about discovering some potentially damaging information about Lauri.
Lydia answers the question of why she didn't participate in the stripper festivities in Mexico.