Vienna has already started following Jake like his shadow. Noticed she is always next to him, or around him, except when Elizabeth pulled him away. How many times did we hear her say she was the "most compatible" with Jake? She says she knows what he wants which is what she also wants, she know all that in two weeks when she has spent very little time with him this early in the show. Ali probably is the only one who had so far spent the most 1-1 time with him during her date.
After watching the previews wonder if Ali made comments about Vienna bec' of Vienna's nonstop talk about her 1-1 date with Jake. Isn't there another 1-1 date too? It would be interesting to see how that person behaves as a contrast to Vienna. It will be interesting to see how they edit Vienna going forward, she talks a lot and they probably have plenty to work with from her.