That’s why you avoid them, and hope they’ll avoid you in return. It’s probably the least dickish thing you can do, and you can always just tell them you’ve been busy with other stuff if you do end up wanting to have contact again. Insults, offenses, betrayals, etc. are much harder to come back from.
The 3rd Axiom of Schopenhauer: if you are a dick to everybody, everybody will be equally and opposingly dickish to you
That’s why you avoid them, and hope they’ll avoid you in return. It’s probably the least dickish thing you can do, and you can always just tell them you’ve been busy with other stuff if you do end up wanting to have contact again. Insults, offenses, betrayals, etc. are much harder to come back from.