Ah, yes. That huge lie that basically just amounted to "I blame the Templars for getting my brother killed." The one that was completely cleared up in a few sentences in one scene. Totally comparable to "Hey, I know we've been in a relationship for a while, but I'm really just a member of a secret organization that was assigned to bodyguard you and told to start a romantic relationship with you. Oh, yeah, I knew about that secret organization for our entire friendship before starting that relationship with you, and knew your dad was in charge of it and your mother was a high ranking member before retiring. But I'm totally being 100% honest now. Scout's honor!"
What's that old saying again? "Fool me once, shame on you. Fool me twice..." Shit, I can never remember the end of that quote.