I've heard of many stories of individuals regretting not saying things to deceased loved ones, be they family members or friends. They feel the need to explain things to them, to express their views or apologize for ways they wronged them.
I've not been in a position to experience such emotions and, hopefully, I won't. But I often feel like the deceased has moved on, and the least of their concerns is what the living did or didn't do. It's only we, the living, who experience this regret.
It's hard to judge what somebody is going through without experiencing it myself, and I worry mostly about my own loved ones worrying that there's something they've not said to me or regret not saying to me.
Despite whatever hardships I've gone through or annoyances I've had, I don't hold any grudges. Nor do I want my loved ones to experience guilt for any shortcoming they feel towards me when I pass away.
I would like to remind myself to assume that every day is my last, and to always treat people with respect and to make them feel loved and appreciated, in case either of us won't be around for another encounter.