Has anyone ever indirectly apologize to you? how did you handle it?

Recently I realized someone indirectly apologized to me by congratulating me while their voice was cracked up a little bit almost like they’re about to cry. I was confused at the moment, but realized later it was their guilt from our history that we never talked about. I was being the bigger person by genuinely smiling & thanked them. Added small things to the conversation to lighten up the mood. It was a tad bitter sweet, but I accepted that now we could at least end on a good note and move forward with life.
Has anyone ever indirectly apologize to you? how did you handle it?
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