As funny as Usagi shielding herself with Luna is, I’m again dissapointed we didn’t get to see Mamoru accidentally say something dorky out loud while checking out Usagi and blush with his hand over his mouth like in the manga. Instead he’s all stoic. Come on, part of Mamoru’s appeal is what a delicate flower her is!
Also if you can recognize Usagi blushing and going doki doki over Mamoru as indicative of “crush” but decide the same behavior over Rei isn’t, we’re forever in opposition. The only difference is Usagi is more embarrassed about it with Mamoru because she doesn’t want to crush on someone so obnoxious and weird.