@NightedgeZero
First, respecting this manga, isn't normal to act like that bc the scenery is much bigger than just a lovely couple who like each other, she clearly isn't well and he acting like that just making this worse, or at least isn't helping, but well like I said this is a manga focus in comedy, supernatural with a lot of nonsense, I like thinking deeper about the works but isn't like it really matter.
Second, yeah I probably use the term before without full understand what it means, as far as I know is for men that are too much attentive and submissive to women, which I think can apply here, he being very submissive and tends to ignore her behavior bc "she is cute".
Whoever if you have more knowledge about the slag and it's frustrating for you when other people using it wrong, deforming the meaning of this, I can understand that and I will be sorry, but you don't have to be a dick for that bro.