I can't say that there was a last straw... but... the horrors at the border, the separating of children from their parents, the torture, the kidnappi… - Mary L. Trump

This is far beyond garden-variety narcissism; Donald is not simply weak, his ego is a fragile thing that must be bolstered every moment because he knows deep down that he is nothing of what he claims to be. He knows he has never been loved.

His deep-seated insecurities have created in him a black hole of need that constantly requires the light of compliments that disappears as soon as he's soaked it in. Nothing is ever enough.

When Maryanne's turn came, she said, "... We've come a long way since that night when Freddy dumped a bowl of mashed potatoes on Donald's head because he was such a brat." Everybody familiar with the legendary mashed potato story laughed- everyone except Donald, who listened with his arms crossed tightly and a scowl on his face, as he did whenever Maryanne mentioned it. It upset him, as if he were a seven-year-old boy. He clearly still felt the sting of that long-ago humiliation.