The Flatshare by Beth O’Leary:

THE SUNDAY TIMES TOP FIVE BESTSELLER SOON TO BE A MAJOR TV SERIES
‘Set to become the romcom of the year – a Sleepless In Seattle for the 21st century’ Sunday Express
‘Funny and winning… a Richard Curtis rom-com that also has its feet firmly planted in real life. A real treat’ Stylist
‘The last book to completely emotionally absorb me in this way was Eleanor Oliphant Is Completely Fine , and I think fans of that will adore this’ Daisy Buchanan
‘If Richard Curtis and Nora Ephron made a story baby’ Zoella Book Club