Delete his phone number after texting a friend. Can I receive it when he receives it?

This is no good, we can only let the other party delete her from Fetion's friends. She didn't open Fetion, and the other party could only send her short messages, which is equivalent to the short message function of the mobile phone. If the phone supports the function of blacklisting the other party, you can try it. I don't know if it's ok. Another way is to turn off the SMS function of the mobile phone card, so that you can't receive SMS, which is obviously unrealistic.