Mary Fitzgerald from Selling Sunset has had it with her costar Christine Quinn's antics for many reasons. Before the ladies joined the Netflix reality series, Christine and Mary were thick as thieves. The pair not only lived together but would hang out with each other outside of work hours. At the start of season 1, Mary and Christine still had the friendship they knew and loved as single women. However, things changed one Chrishell Stause joined The Oppenheim Group.

Christine felt Mary had grown closer to Chrishell and put her out on the sidelines. Their relationship began to deteriorate even more after Christine started dating her now-husband Christian. The two drifted apart, and it became difficult for them to come back together. Mary eventually hit her breaking point with Christine and realized they were no longer meant to be friends.

Related: Selling Sunset: Why Fans Think Christine Quinn's Lying About Emma Hernan

There are many reasons why it's difficult for Mary to be around Christine. While the ladies were friendly during the first three seasons of Selling Sunset, their relationship began by the end of season 3. Mary didn't like the way Christine put Chrishell down throughout the first two seasons. Chrishell was new to The Oppenheim Group, and Christine didn't do anything to make her feel welcomed. Mary developed a close relationship with Chrishell, leading her to feel sympathy for the new realtor. When Chrishell found out her husband at the time, Justin Hartley, filed for divorce, Christine didn't show sympathy for Chrishell like Mary thought she would. Mary began to see Christine in a different light, and she didn't like this side of her friend.

Mary, Christine, and Heather sitting at the office on Selling Sunset

While Mary, who confirmed workplace drama for season 4, was hoping they would bury the hatchet once Christine was pregnant, they only grew further apart. In season 4 episode 5, Mary almost broke the fourth wall when she noticed Christine was invited by Jason to their dog's birthday party. Mary pulled Jason aside and told him she didn't want any drama that day and was only looking to celebrate the life of their precious canines. Christine has been stirring the pot at the office too much for Mary's liking, and she isn't even back at work yet. Mary's final straw was when Emma told her Christine completely lied about being engaged to their mutual ex-boyfriend. Mary no longer feels she can trust Christine, who wasn't invited to Heather Young's wedding, and is over the drama she is causing in the office.

Despite their long-standing friendship, Mary can no longer take Christine and her antics. Not only is she always starting drama, but she has also lied several times to the ladies about her past relationship with Emma's ex. Christine is no longer a trustworthy friend in Mary's eyes and wants nothing to do with her.

Next: Selling Sunset: Christine Quinn & Emma Hernan's Ex Is Causing Them Drama

Selling Sunset is now streaming on Netflix.