But... he show interest no matter the choices... Even in comment what you replay on, there is enough examples, and it's all from recent and last updates

If you skiped a ton of dialogs and interaction, it doesn't mean it didn't happen, and i recommend maybe replay to see what this quite often happened.
Or you think "Show interest" is jumping on and forcing Asuna every time he sees her like Inoda doing?

Well, even in first chapter Kirito wasn't like that: if Asuna says "No, I'm busy" Kirito will just go with it, like he always did.
And btw, in resent events, he IS the most annoyed what he can't do anything with her alone because of all this things what interrupts them, exactly cause HE WANTS to be intimate with Asuna