Consequences by E.M. Delafield

All that summer every one spoke of "Jubilee weather," and London grew hotter and sunnier and more crowded day by day.

Alex found herself wishing, fretfully and almost angrily, that she could enjoy it all. But the sensation of loneliness that had always oppressed her, although she did not analyse it, was always most poignant amongst a great number of people, and her listlessness and self-absorption in society at last caused Lady Isabel to ask her gently, but with unmistakable vexation, whether she had rather "leave most of the gaieties to little Barbara, to whom it's all new and amusing."