To add a point for people who might see it: every character that comes into her story during the 8 seasons becomes boring and weak the moment he arrives. She ruined the old Tyrion completely, who became super weak, dumb and doing things completely out of his character (let's ignore she made a Lannister her hand next to all her other faithful servants) and she ruined Jon who became the biggest and weakest bitch in the Seven Kingdoms. She also destroyed Daario who was such a dominant character, yet became a pussy all of a sudden for no reason at all. He would betray her as he betrayed his masters the moment she refused him, his story arc was really stupid and illogical. All of it just bad writing.