It's always good to check out what's happening in Fondation Cartier. They have lots of really good exhibitions of modern art, and the gallery itself is very beautiful. Perfect for seeing works you already know as well as discovering new artists and inspirations.

L'Officine Universelle Buly, also known as simply Buly 1803 is a beautiful shop based on the Rue Bonaparte in Paris, it specialises in refined, artisanal beauty products.

Cool bar-restaurant in the parc of Les Buttes Chaumont, quiet, peaceful with good cocktails

A nice & big wine seller in the area of Belleville. You can also eat some good typically french things.

If you need somewhere to contemplate leaving your lover, go alone, and if you don't mind them not being there to share something sublime in a glass or a dish, you have your answer.