This would be my preference as well. To change the focus/intention into high-level protection of the affected party instead of inflicting anything onto the aggressor itself. I find also that sometimes, in instances such as these, we might benefit from nurturing stronger faith in the intelligent universe and the connections/links made. This will make it easier to manifest just action, if there is indeed injustice / willful harm being done.FBF - IMO there's a big difference between revenge & protecting yourselves from further abuse. Can you adjust intent to encompass protection?
It might be an unpopular opinion, but sometimes an obstacle can also be an occasion for deeper understanding towards resolution. Taking into consideration that the aggressor could be unhappy or disgruntled for some reason, or is just plain nasty, I think intentionally doubling up on the loved one or affected party either through prayer, meditation or protection spell, can be a more ethical way of dealing with such situations.
Never forget that this could also be a person who is going through her own pain and suffering - and is not equipt to deal with it within her current self. She is also on her own spiritual journey, even if she is not aware of it.
We should not have to compromise ourselves to avenge, seek vengeance and retribution onto others. Keep ourselves clean and clear, within our higher selves, instead of slipping into darker paths. We might lose more than we anticipate in doing so. It's simply not our job to teach others a lesson - that is the universe's responsibility. but we can shield and protect others with Love and Intention. that is ALWAYS my belief.
At this time, it might be best for us to strengthen our psyche - while the aggressor is the main cause of pain, under prolonged pain and duress, we are also susceptible to taking the dark paths/choices. That will limit our own ascension in the long run, as it can easily start to become a habit once we choose to "execute" a revenge. Meditate, nurture your energy and intention, build up your psychic shield and extend/project this to your loved ones. Keep strong connection to source, and open within ourselves an invitation from which the universe to manifest.
In an ideal circumstance, there should be a spell or way to protect and at the same time, deflect evil action/intention back to the aggressor. At some point, they might get a hint that they are the cause of their own suffering, or simply run out of steam and leave your loved one alone.
The most i would do personally in this instance is perhaps a binding-type thing on the aggressor, to prevent her to cause more damage. But nothing more. I would focus my energies on helping and protecting my loved one, rather than seeking to destroy an aggressor or adversary.
But that is just me.