How many of you heard something as harsh as your dumper (ex) telling you to delete their number in the heat of the moment?

This thread is for people to talk about harsh breakups where the dumper said something like "delete my number and don't send me anything again" , and how serious you think that is on the spectrum of breakups.

Do you have experience with a line like this? Does something like this usually indicate full finality or have you gone through it and heard back from the dumper?