If you realise you owe someone an apology, go and make things right with them.
Pretty sound, uncontroversial advice that many of us live by anyway, perhaps. But take note of the wording. I was recently involved in a discussion of this topic and during the course of the conversation it became clear that several people hadn’t noticed that the onus is on the the one who owes something to go and sort things out.
So what happens when we realise there is something wrong in a relationship but we don’t believe that we have anything to apologise for?