no one's arguing what the optimal course of action would be if you could take all emotion out of the equation.
everyone knows that moving on would be the best thing to do, just like we know we should be studying for that test getting that project done eating salad instead of burger etc
you are saying really obvious ***that everyone already knows and it's about as effective as moms telling their kids that they should eat their vegetables
if yeah you know all of this and you're still spouting the same cliches that everyone's heard a thousand times before, you're either trivializing their feelings or insulting their intelligence