When things turn sour, Ryan came up with the idea to truncate a girl’s number instead of deleting it.
Truncate (v.): deleting the last 2 numbers of a phone number, so you cannot call or text that person.
The argument for truncation over plainly deleting a number is that if she texts you, you have a number to cross-reference it with. And since you don’t have her full number, you won’t be tempted to call or text her unless she contacts you first.