Someone I went out with for a year, and remain on very good terms with, though we now live in different countries, has taken his subsequent girlfriend to literally exactly the same places I showed him.
I'd lived in London longterm before I moved away and met him, he didn't know it well (and was originally from overseas), and on weekends there, I'd taken him to my favourite restaurants, walks, bookshops, shown him individual things I liked in museums or galleries etc. Him not being a particularly sensitive chap partly why I ditched him in the first place I did get to hear, a few years after we broke up and I left the country, about how he had wowed his new woman with a customised tour of London which was a venue-for-venue, route-for-route repeat, down to Persephone Books and a drink at the Lamb on Lamb's Conduit Street, 24 bus from Westminster to Hampstead Heath for a stroll including a look at the Rembrandt at Kenwood, dinner at Bocca, across the street for icecream at Gelupo, etc etc. 
He was surprised and rather sheepish when I said 'That all sounds very familiar'. I thought it was funny, more than anything.