RHOBH Fight: Taylor Armstrong, Yolanda Foster Fight Over Husband, Trash Talking About David Foster's Ex [VIDEO]

"The Real Housewives of Beverly Hill's" cast members, Yolanda Foster and Taylor Armstrong get into a huge argument about acting like high school girls. Foster approached Armstrong about talking behind her back during a small gathering at her mansion with the ladies.

Foster gotten word from her other cast mates, that Armstrong was saying negative things about her went straight into it with the widowed reality star, "You know, I wanted to ask you ... I hear from all the girls in the group that you have an issue with me - do you know anything about it?"

Taylor tried to back track and innocently told Foster, "No ... what issue would I have with you," but Foster wouldn't back down and told Armstrong that she heard multiple times from multiple people and later admitted off camera that her real problem wasn't with Yolanda, but with her husband David Foster who was married to her close friend Linda.

Yolanda hinted that she knew about Armstrong's friend, Linda and told Kyle, "that she still loves him, and wishes they were still together." Although, it seemed like the girls knew the reason and could now move on, but Foster insists there is more to the naked eye, "Obviously Taylor is lying [about the tension,] so I plan to just wait for Taylor to gather the courage to come to me and say what she thinks."

Monday, Yolanda expressed her concerns on her blog and opened up to her fans about her talk with Armstrong, "Even though I don't believe we can or need to all be best friends, I still feel we need to look each other in the eyes and be honest," Yolanda wrote. "Maybe if Taylor had taken the time to have a coffee with me, she might have liked me before she wasted her precious time not liking me," she added, "I just realized she is now trying to make it about my husband. Geez, she doesn't even know my husband so she is judging him on whatever his ex-wife has told her ..."

In a snarky tone, Foster continued to bash Armstrong on her blog telling her to get her facts straight before talking behind her back, "Well Miss Taylor, remember there are always three sides to a story. His, hers, and the truth, so maybe get the other two-thirds of the story before you let your mouth run on someone you don't even know!"