You’ve Got Mail (1998)

The owner of a large bookstore chain starts putting the owner of a small local bookstore out of business. Meanwhile they have been corresponding over the internet without knowing who either of them are. They can’t stand each other in person but over the internet they are very attracted. He finds out who she is but she doesn’t know. He starts to like her more but she still hates him. He has to fix it.
Nora Ephron
18 Dec 1998 (USA)tt0128853