Who Does Ali Pick on The Bachelorette in The End?

I want spoilers!
Who does Ali pick on The Bachelorette in the end? Chris or Roberto?
I am dying to know who Ali picks on the Bachelorette in the finale...does anybody know for sure who she is going to pick?
it true that Ali doesn't pick anyone at all?

I personally think Ali is going to choose Roberto in the last episode, but what do you think?

Nobody knows except Ali and whoever she might have picked in the end. All we can do is guess. It's between Chris and Roberto. We must all sit on our hands and wait till the finale of The Bachelorette, when the truth shall be revealed!

I have heard that she picks no one, and then I heard she picks Roberto. If she chooses no one, then this entire season of the Bachelorette has been a huge waste of my time.
I believe Ali really really was falling in love with Frank and now that he told her he still has feelings for his ex Nicole and wants to be with her, she did not really have a choice. She is stuck with Chris and Roberto.