Richards' alleged alcoholism publicly came to light on Bravo's January broadcast of The Real Housewives of Beverly Hills' first-season finale during an argument with Kyle Richards, her sister and fellow The Real Housewives star.
During the heated confrontation, Kyle claimed Richards was an alcoholic who had previously rejected her family's attempts to convince her to enter a rehab program.
Richards was reportedly deeply humiliated by her sister's disclosure but nonetheless returned for the second season of The Real Housewives of Beverly Hills, which premiered in September.
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