Sixteen years since the divorce, it’s time to meet his new family.

(from Best American Short Stories 2005)

Years ago Violet would have loved the taste of this moment; now it soured in her mouth.

Tight little psychodrama. Although all the tensions are built into the situation, with few surprises, the unfolding was riveting. Peaceful and devoid of intense action, but real and anxious and captivating.
Couldn’t find the story for you. Here‘s a link to the magazine in which it first appeared, The Ninth Letter.
Also, I’m not sure how long the sale will go on, or if it’s even a sale, but I picked up Best American Short Stories 2005 for like six bucks at Barnes & Noble. Perhaps you could too.