The truth about her supposedly cheating on Lyle one week before they got engaged is out, and he seems to have chosen to believe her, but Santana's arrival at the house is going to cause problems with Lauren and Tiffany on Party Down South.  

Lyle Learns The Truth About Santana's Cheating

The two were floored when their warnings about her were tossed away, and when Santana gets there, the issues get even more intensified, especially after she and Lauren get in one another's faces.

"Don't come at me like that!" Lauren says to Santana in a preview clip for the Thursday, Feb. 11 episode.

Mattie Dishes On The Lyle/Santana Situation

"Get the f*** out of my face you ugly fat b***h," Santana replies.

Naturally, Lauren does respond well to the statement, and all-out catfight then breaks out.

This won't make things any better for anyone in the house, as they all try to deal with the issue and how it's potentially tearing their family apart.

However, at least one thing will bring something nice to the house and the group, as Murray will make his return to Savannah after leaving suddenly after only a couple of nights due to issues back home with his mother's health.

And while everything else may be going to hell, his return will at least bring one bright spot to the vacation.

"My vacation just got a 1000 times better," Walt says in the clip.

Party Down South airs Thursdays at 9 p.m. on CMT.

Tags: Party Down South CMT Reality TV