Grudge
Some hold grudges more than others.
A grudge is always less about the offender than the holder of the grudge. The holder usually defaults to an external locus of control and has an incredible memory. The grudge is worth nurturing and serves them in some way. At least they think it does.
As a haphazard forgetful visionary and an armchair psychologist I’ve noticed a pattern. I don’t ever hold grudges and it has nothing to do with some sort of moral ninja skill. I’m simply forgetful. I’ve noticed that those who have a steel trap memory also struggle letting things go.
I have 99 problems but grudges are not on the list…or at least that I can remember.