I believe there was definitely something off going on between them, the theories about that stylist giving Karina bad/dangerous outfits on purpose is most likely true because I see Karina being very aware of the fact that when it comes to her, Becca could’ve done a better job and this makes her sad. But I also believe that there was an influence from the higher ups (or other employees) in SM that made Becca treat Karina like that, not saying that she’s innocent because I feel like she really did not put that much effort into Karina (it seems like she really had a very hard time to find good outfits for her to the point it was too much for her hence the little efforts The Devil + 10oW) but there were orders that she had follow as well.