London rain is not a suggestion; it’s a lifestyle. If the sky opens up, do not run for a cab. Dupe her into a bookstore. Daunt Books on Marylebone High Street is a cathedral of books. She’ll wander the travel section under a skylight, and you’ll buy a map of Norway you’ll never use. It’s fine.
Another rainy-day move: a cocktail class. There’s a place called Purl in Marylebone where you shake martinis in a speakeasy. She’ll get tipsy, tell you the story about her college roommate, and you’ll both laugh. Trust me, one gin-based anecdote unlocks everything.
Or just go to Liberty London. It’s a half-timbered masterpiece of a department store. She can touch the scarves, sniff the candles, and pretend she’s rich for an hour. You can nap on the third-floor sofa. No judgment.