You shouldn't ghost people you date.
Alex had been dating Kathy for a few weeks, but wasn't really clicking with her.
Alex wants to see someone else.
Alex meets Kathy for coffee and tells her how he is feeling.
Alex stops returning all of Kathy's texts and calls that she sends to him.
Kathy is somewhat disappointed, but happy that she and Alex can still be friends.
Kathy gets depressed, and she stops going to work or even leaving the house.