After a brief breakup earlier this year, the couple appeared to be back 'on' judging by their cute, coupled-up social media pictures and we were really happy for them because they seemed so happy together.
In this new Teen Mom OG sneak peek, though, Farrah and Simon have a tough argument during dinner and as Farrah is walking away, she tells Simon that he is out of her life.
During the argument, Farrah tells Simon that he's been a bad influence on her daughter Sophia. "I haven't even been letting you see Sophia," she explains. When he refers to her as "the kid" and not by her name, that upsets Farrah even more.
This definitely looks like it was more of a breakup than an argument, but we're sure we'll find out when Teen Mom OG returns in January.
**Tune in to MTV on January 4 at 10/9 c for back-to-back episodes of Teen Mom OG**