Actually, this seems to be what they were going for in that movie:
Zari has so much more chemistry with John that it's not even funny. Well, it is funny since TPTB think Nate is all that and a bag of chips.
You know, I don't like Ava, but they've been using her very effectively, like in this ep and the one with Marie Antoinette, so I end up enjoying her anyway. Stop manipulating me, show.