Ask the Therapist columnist Lori Gottlieb advises a reader whose close friend is no longer welcome at her nuptials.

But for a child’s birthday party, one would invite guests from, say, 2 p.m. to 4 p.m., so parents know when to pick up their children. If I am hosting a cocktail party, is it acceptable to ...

DEAR MISS MANNERS: I sent out party invitations that included my grandnephew ... Of course she is welcome, but is there a polite way to tell him that guests don’t invite people who hadn ...