Dangerous Ages by Rose Macaulay

The day that followed was strange, and does not sound likely, but life often does not. Nan took Mrs. Hilary out to lunch at a trattoria near the Forum, as it were to change the subject, and they spent the usual first afternoon of visitors in Rome, who hasten to view the Forum with a guide to the most recent excavations in their hands. Mrs. Hilary felt completely uninterested today in recent or any other excavations. But, obsessed even now with the old instinctive desire (the fond hope, rather) not to seem unintelligent before her children, more especially when she was not on good terms with them, she accompanied Nan, who firmly and deftly closed or changed the subjects of unlawful love, Stephen Lumley, Capri, returning to England, and her infant acts of wilfulness, whenever her mother opened them, which was frequently, as Mrs. Hilary found these things easier conversational topics than the buildings in the Forum. Nan was determined to keep the emotional pressure low for the rest of the day, and she was fairly competent at this when she tried. As Mrs. Hilary had equal gifts at keeping it high, it was a well-matched contest. When she left the Forum for a tea shop, both were tired out. The Forum is tiring; emotion is tiring; tears are tiring; quarrelling is tiring; travelling through to Rome is tiring; all five together are annihilating.

However, they had tea.