Took me to long to realise this post was not about null’s sexualityJust small point of fact, Josh said that he didn't like dick in a stream before (citation needed, I'm lazy), and was lamenting that his success was tied to Dick's in his Life is Strange playthrough.
So I believe that it was purely a business partner ship for NP2, along with the clot Dick has the time being beneficial for Josh. As soon as Josh had no need for him, he turned immediately.