Who is in?

The interview was over.
The Managing Director Mr. Girinath invited the two selected candidates for a cup of coffee at his house the next morning.
That was the final round.Girinath was to select one out of the two as his Manager.
Arun or Vinay.
Arun was certain he would get the job. He felt that he had answered very well during the interview.
Next morning, both Arun and Vinay arrived at the right time.
They waited in the drawing room.
Girinath came in, wished them and asked them to be seated...
They were all served biscuits and coffee.
It was an informal meet and Girinath started talking while he sipped the coffee now and then.
Vinay took his biscuits and started drinking the coffee, and was nodding his head.
Arun , out of respect, kept on holding the cup and was watching Girinath talking while giving comments now and then.
Now it was time for Girinath to tell them who was selected. Arun’s coffee was becoming cold. He wondered whether he should gulp it or keep it back on the tray.
Time was up and he could not decide about the coffee.“Vinay, you are selected as my Manager. Congrats!” Girinath shook his hands and turned towards Arun.
“Arun, you could not give me company even for a cup of coffee! Should you not have finished your coffee by now, while we talked? How would you support me in my endeavors? I am sorry!”