Carvell and Mallory jump right back in. A letter-writer complains that her brother is a “man whore” — but first, we need to talk about who’s throwing glass at your family events. Then, should I tell my fiancé that I’m pretty sure I once slept with his best man? And finally: a knock-down, drag-out fight over whether a letter-writer should humor her father’s insistence that her boyfriend ask permission to marry her. Hear more Prudence by joining Slate Plus: Slate.com/Prudiepod.