Antique Jeweled Ring (Spoiler Alert!)

Ok, so I had my sim put on the Antique Jeweled Ring and she got the "Heir of Desire" curse.  I tried using a Potion of Curse Cleansing (RoM EP) on her, but it did NOT remove the curse!?!

Short of completing a Fortune Aspiration and selecting "Remove Curse" afterwards (As it says to do),  or the "Untamed" spell "Decursify" or the "Right of Dissolution" from one of the Mage Sages, how the bleepity bleep bleep do I remove this curse from my sim???  My sim who is a Mage, KNOWS the Untamed spell, "Decursify", but can't cast it on herself even though now she's cursed???  Or in the case of the "Right of Dissolution" from one of the Sages NOT working to remove the curse, just as the "Potion of Curse Cleansing" did not work itself.  Plus what's this I'm reading about how the "Heir of Desire" curse coming back repeatedly, even when removed using the Fortune Aspiration "Remove Curse" solution itself???

Sorry for the spoiler but I DID try to warn people in this post's heading!

ANY advice on how to remove this curse I'd really appreciate!! (I really don't want to do the Fortune Aspiration cure with this sim!) THANK YOU!!!