I think she is just saying that to be funny cause a bunch of Fandy and OTK's audience were watching her. You have to be careful taking anything streamers say seriously. A lot of them joke around or put on acts. As people have been saying, she is a pretty small streamer who was only getting like 200 viewers who definitely wants to increase her viewership. Cause even if you were in some relationship with a married couple, you don't openly admit it for many reasons. The odds of those things working are about 0%. Dude starts liking the other girl more, or paying attention to her more, and it explodes. So the fact she is joking about it tells me it's not real and you should not take it seriously. The husband and Statia are already doing "bits" by pretending to cheat and "don't tell Cattie". That is Fandy's real name. It's a show and they all benefit.
Plus I believe Fandy's 10 year old daughter also lives with her or spends a lot of time with her.
The actual truth is Stasia probably broke up with her long term boyfriend whose house she was in. And Fandy and her husband are letting her stay in their place until she can get on her feet and find her own place. Fandy also has been wanting to do more IRL streams for a while, and now with another hot girl there, she can start doing more IRL, Fandy usually gets 1k but her gym streams with Stasia were getting 3k.
I guess you can ask will Stasia now film content with them or would that be too awakard? All Stasia has really done are lingerie pics so it would be going from 0-60 if all of a sudden she started to fuck Fandy and her husband. I just don't see that. Like I said, I think she is just there cause she broke up with her long term boyfriend and was living in his house. And they are taking her in until she can find her own place. And it's good for content.