Darren x Kane / why does he act like this?

Hellooo,
Here the thing, I haven't watch nsb in a while now and I just save an old vidoe of them with Kane and Darren being rude to each other as usual...

I then though why not write a story about them two

Darren is really rude to Kane and Kane tries to be rude back but sometimes it's hard for him to do so...why?