Kim Richards may not be a full-time housewife on The Real Housewives of Beverly Hills, but she's been a big part of season six due to comments made about her drug addiction.

In one of her latest blogs, Yolanda Foster, a close friend of Richards, defended her against comments made by Lisa Rinna during a recent episode.

"It was painful for me to witness her so bluntly label Kim a 'drug addict' and Brandi an 'alcoholic' in public because the ripple effect of that was so painful for all involved from children, family and loved ones," Foster wrote. "So much hurt that could have been avoided if handled in a more delicate way."

While Richards and Glanville weren't included in the official season six six cast, they were brought back in guest roles, and they could return to the show next season. Either way, Foster remains supportive of the women, and wishes her co-stars would do the same.

"These women were in our lives for many years, and YES there were some really 'uncomfortable' and 'unacceptable' moments between them and the women in this group. I respect that and have not forgotten. At the end of the day, though, they are still human. They deserve to be loved and supported, especially during difficult times," she continued. "Kim and Brandi have always been compassionate and supportive of my journey, and for that I will be forever loyal."

For more Kim Richards, tune into The Real Housewives of Beverly Hills season six, airing on Tuesdays at 9 p.m. on Bravo, and check out a preview of tonight's new episode below.