Incorrect. John is a swedish telephone salesman, and Knut is a norwegian actor. They don't know each other.
Allow me to retort.
"Hi John" and "Hi Knut" is friendly talk between people who know each other well.
In the painting John and Knut are drawn close to each other (almost touching), but on the earth they are on different sides.
John and Knut seem happy and content with how satellites work.
Dorothy is shown to be unintelligent.
The painting was done by a male and the female (Dorothy) is looked down on.
The other female is drowning.
In the painting John is gesturing to Knut and Knut's head seems to pop up in excited response.
John is the first male to be named, so this leads me to believe that John is the artist's projection of himself.
The moon is directly over the centre of John and Knut and moonlight is indicative of "romance".
There is no evidence of Knut or John's occupations, nor is there evidence that they do not know each other. The attempted denial of the fact is yet more evidence of the truth.
Thus, with overwhelming evidence, John is Dr. Nor and Knut is John's boyfriend (of course Dr. Nor could be a needy boyfriend, and this could indicate that Knut is Dr. Nor and John is Knut's boyfriend, but there is no evidence to support this).