In my world there’s two kinds of apologetic rules.
1st- the everyday apology...
I bumped into you ... I’m sorry.
i can’t supply you with something ... I’m sorry.
i forgot to pick up your dry cleaning... I’m sorry.
2nd- the deep apology...
i hurt your feelings.... I’m so sorry.
i forgot your birthday.... I’m so sorry!
I missed something important....I’m really sorry!
two different kinds.... I’m never sorry to say sorry, I just feel it in different ways.