It's rude to ghost someone.
Kylie is talking to a boy through an online dating app when he meets a new boy at her school that she's more interested in.
Kylie wants to focus her attention on the new boy from her school.
Kylie tells the boy on the dating app that she is getting serious with someone else and won't be talking to him anymore.
Kylie stops talking to the boy on the dating app and instead exclusively texts the new boy from school.
The boy on the dating app is sad initially, but accepts reality and moves on.
The boy on the dating app is frustrated and stops attempting to talk to women entirely.