The very first place i've been in Paris.
My first month in the city, i spend over 800€ in this bar (true story)
It's simple, warm and friendly, drinks are not so expensive (for Paris...). You can talk with every body, people there are open minded and funny (but only because everybody is drunk)
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.
Just down the street from the impossible to get into Frenchie, you can complete the Gregory Marchand hat trick at the latest outpost from the renowned Frenchie chef. The Anglo-inspired eatery features excellent Reubens, flavorful fish and chips, sweet treats like brownies and pecan pie, housemade ginger beer, pickles & maple smoked bacon, and a great beer list.