We discussed it and we've decided that curses on characters can be brought in on a case-by-case basis. (As some curses can effectively be powers but canons categorize them as that to be edgy.) In this case, we've decided your character's curse is fine to keep should you choose, but she will have the option of having it removed by someone with siphoning magic (removing curses is their speciality after all!) We hope that will give you a good opportunity for potential CR in the future. However, there would be no indicator to your character whether or not it still stands, so that will definitely be a trial-and-error discovery!