Why does everybody constantly want Nick and Judy to be an intimate couple?

Because they have chemistry and a good relationship, unlike other recent Disney couples which are just rude and condescending. Sure, Nick and Judy don't get along at first, but then they quickly made a good friendship.

IMO if they were couple they'd be much better than Flynpunzel and Kristanna, which are just the same couple only in spring and winter options.

Because people like shipping. Also because of how close they are? I don't ship it, because personally I like having a male and female character that are best friends but don't have a romantic relationship, but everyone is different.

Because people are obsessed with this "shipping" bullcrap, to the point where they must not have a life.

The concept of shipping is so retarded in my opinion. I hope they don't get together, so it will teach the shippers that Disney doesn't give a crap how badly they want certain characters together. Disney has the right to do what they want with THEIR own characters, not the fans.

Simply because Nick is a guy and Judy's a girl.

I'd like them together if it weren't for the fact that Nick is a fox and Judy is a bunny...

Gee, maybe it's because of the chemistry between the two of them and the affection they show for each other? And do you have something against an interspecies couple? Are you a fan of Donald Trump? Do you regularly watch Fox News??