Kyle Richards is being honest about her biggest low on Bravo.

The Real Housewife of Beverly Hills (who is the last OG standing among the current cast) confessed that one of the moments that made the show famous is also the one she regrets the most because of how it impacted her sister Kim Richards.

“In season one, in the back of the limo with my sister [Kim], the world saw a traumatic family dynamic,” Kyle told The Hollywood Reporter in an interview published Aug. 3. “I still get teary watching it.”

The 57-year-old referenced an infamous scene—during a limo ride with castmate Adrienne Maloof—in which Kyle and Kim got into a clash that ultimately led the Halloween actress to disclose on camera that her sister was an alcoholic, which Kim later confirmed during season two.

At the time, amid the argument, Kyle called Kim “sick” and “an alcoholic,” adding that, “I’ve said it now, and everybody knows.”

When looking back on the admittedly painful interaction now, Kyle remarked that she “would never handle it that way today.”