Martin politely wished him "Good evening" and escaped to his room.
As he changed his clothes he tried to translate into definite facts his vague discomfort.

One, he hated that swine Thurston.

Two, Amy was vexed with him (What strange impossible creatures women were!).

Third--and by far the most important of them all--his father wanted to talk to him.
He knew very well that this talk had been preparing for him ever since his return from abroad.

He dreaded it.