Write for one person. It’s difficult to make every one happy. If you try to write that way you will not be able to write anything. So, write for one person - the person you love. Try to make them happy.

Hemingway thought the same (from Ernest Hemingway on writing).

I believe that basically you write for two people: yourself to try to make it absolutely perfect; or if not that, then wonderful. Then you write for who you love, whether she can read or write or not, and whether she is alive or dead.