This is almost too small to post but here's a headcanon-dream I had, waaaay back when I first began shipping Rosawatts (and forgot about it again, maybe I'll still get a fic out of it idk). slightly edited to make my talktags flow better.
I don't remember enough for it to make sense but it was definitely AU, they were new security guards or something at this fancy place? boring I guess but they were still hightech+badass even tho they were newbies
ANYWAY THE IMPORTANT BIT
Rosawatts being shown the ropes/watching how to work this new tech, and Eva's watching intently, doing this thing with her hands like she's at a keyboard even tho she isn't (a habit/memory thing she has). Neil notices and has just a really sweet tender look on his face like "that's my girl" while he watches her, not even paying attention to the instructions, but he puts a poker face on when he nudges her and says "hey you're doing the thing" and Eva's like "oh. Yeah." vaguely embarrassed but goes right back to doing it and Neil smiles with soft eyes as soon as she's not looking
IT WAS SUPER CUTE OK NEIL HAS IT BAD
(then Eva has to remind him of everything like "honestly Neil were u even listening", and Neil is all "ahaha u know i learn by doing not by being talked at" but sweating nervously
and she leans over his shoulder to make sure he's doing it right, so more nervous sweating/trying not to blush)
In conclusion: flustered Neil is best Neil and I don't care if it's out of character :D