Guy finished his relationship?

He told the girl he went on dates with that he has no feelings for her, he doesn't see her more than a friend or acquaintance and he is not looking for anything. All these were lies because he wanted sex and he never treated her as a friend but was always passive aggressive towards her.

He insulted her in front of his classmates by acting like she's chasing after him and then she decided to quit it and wrote him that she has been disrespected enough, how he has hurt her intentionally and does not want to continue this association. She wished him goodbye and take care. He didn't reply to her message but even after all this, he still didn't delete her from his contacts.

Why is he still keeping her number when he himself told her they have no relationship and when she ended it?

Guy finished his relationship?
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