I dont get it ....
In the end, Eden goes to Mario’s place for pregnant Priscilla, but he is not surprised that she came alone without Vaughan, and allows her to see Priscilla.
shareWith all the freedom that Vaughn had given her in his presence, he probably assumed that they were partners. The first thing that would have come to my mind is that Vaughn couldn't make it and decided to send her alone.
However, wanting to see her is indeed suspicious.