I’m probably not the only one who doesn’t have a clue how to respond to your post.
And I’ll admit it.
So for now all I can offer is to be aware that expectations are very powerful, even traces of them. So if you expect or believe that your ex is a powerful black magician…guess what he’ll wind up being to you.
Eliminate that thinking by eliminating the inner monologue, at large, and I suspect you will also eliminate your susceptibility. Maybe because as the earlier books state, your personal power will start to grow.
And maybe personal power isn’t any more complicated than how much of the double’s energy, your lost resources, you’ve managed to recall back to your core.
Or even how good you’ve gotten at refraining from actively pushing those resources/awareness/energies away.
Also, the first few books (the ones written in the 1970’s) where there is more talk of battles between sorcerers, would be more applicable than the later books, in this specific situation of yours.