So, Glorio, let me check my understanding. You wear the Seducer's Bane bracelet, that's been concealed by magic aura, and use your special talent to throw off Abadar's truthtelling after initially having accepting it (and successfully taking the semblance of an inevitable).
This part of the plan is simplicity itself, and we all know from long experience that improvising something in this order of complexity which relies on the precise interactions of spells, magic items, and unique special abilities always works and never fails.
You then plan to spin a fantastic yarn which simultaneously convinces them that they shouldn't kill me and that I can't honestly argue my own case. This part of the plan also seems foolproof on first blush.
But what's your plan for detect evil?