What is a short summary of the story, Diamonds, from the collection, Young Skins?

“Diamonds” follows an unnamed narrator. He appears to be about 40 years old. He is an alcoholic, and his alcoholism leads him to lose his job and friendships. He moves back to his hometown, where he acquires a job as a groundskeeper and gym teacher at the high school he sued to attend. He attends Alcoholics Anonymous. At one meeting, he meets a woman named Siobhán, who is about the same age as him. She is the mother of one of the students at the school where the narrator teaches. She worries that her son will grow up to be an alcoholic. The narrator and Siobhán drink together, causing the narrator to relapse into alcoholism. He goes to a nearby city and begins a multiple-day stretch of binge drinking.