Why Do I Apologize When I Did Not Do Anything Wrong?
Humans are built to defuse tension faster than they are built to be right. The apology arrives before the thought because of: 1) conflict avoidance trained into a reflex, since sorry is the fastest tool anyone has for lowering another person's voice 2) the just world instinct turned inward, because if there is trouble you assume you must have contributed something to it 3) learned helplessness, from apologizing your way out of enough rooms that it stopped being a decision at all. Sorry is not politeness when it is automatic. It is a confession you did not mean to sign.
What it is costing you
Sorry lowers the temperature fastest
You use it before thinking
It still reads as admission
Later it gets quoted back
Myth vs Reality
Myth
Apologizing keeps the peace
Reality
It buys quiet now and gets read back as fault later.
Try that sounds frustrating instead, and notice what does not happen.