Natsuno is kind of a mess, in the sense that Tohru has left and he's kinda still moping about the whole being alive thing, but that will pass over time and maybe he'll meet a nice boy he can be interested in. It's a whole process XD
He's a little better about it, but accepting it has to be this way and actually thriving in that are two different things. That said, he hasn't met a ton of people, he has however made (1) friend for sure in Alice
Their behaviour otherwise hasn't changed, they were already going to bed together to get some sleep and pestering each other, much teasing. Much flirting. idk how they can't figure things out on their own
don't you mean he's unofficially married to genyou'll blow their minds if you say that too soonso he can make a spreadsheet