Is my memory wrong or this is the only episode these two are together alone in a scene?
Hmm, now that you mention it, I can't think of any interactions they have outside of in groups and no team-ups. This is odd considering they got paired up on merch and for promo art. Though a few of the examples of them standing side by side in group shots could be due to the manga art being adapted.
I think the manga tricks us into remembering things different in the anime and vice versa. I'm pretty sure it was almost always Minako and Makoto paired up in episodes where Mars and Mercury had mostly solo episodes and rarely ever teamed up except for a few times Ami and Mako did.
Ami/Minako episodes must be the rarest though...outside of Ami correcting Minako's mistakes do they have any interactions?