Treasuring someone

I'm really curious about this, but take for example, you have a friend who fell into an argument with you recently, and both of you think it's the other's fault and refuses to apologise because of pride, you know, that normal kind.
So one day one of you tells the other you are about to die. Would you apologise and make up? And why?
For a normal day, a normal situation, no one would've made up because of personal issues and all that stuff, but once someone is facing death, everything seems to be fine.
Yet no one knows when the world will end. What if you die tomorrow?
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