Yep! There's one teensy optional-dialog line where Elma wonders whether Lucil's noticed her vigilance that proves we're not imagining it; the game designers meant us to read it as a young-officer crush.

I'm getting the sudden urge to follow up on my old Tilting of the Tide one-shot with Elma and Lucil in the aftermath of Operation Mi'ihen, but I have enough irons in the fire as it is.