Firstly WOW! I haven't heard of Spirit or Higher beings attacking anyone else. Firstly because they come in forward in Love and Positive Energies. I have, however, heard it being said that its best to be wary of the living more so than the dead as the dead or passed over to the spirit world can't possibly harm you. Having said that they are indeed energy so its best to ask first if they have malicious intentions and if they do perhaps ask them to step back and leave your fields entirely. Goes for living & any energy that you are unsure of. I have also heard it being said that its best to ground up and protect your energies just to be on the sure side. Now as far as psychic or spiritual attack goes, yea, there is a lot out there with people not having their heart in the right place, I've come across a few of those, but if you send out a lot of love and healing it does help and also it helps them to rethink the situation and step back.
IF you do come across this circumstance happening again the best alternative is to call in your Gatekeeper and escort ANY and ALL negative Attaching Entities or Energies living or otherwise that are connected to the situation and ask for him or her and the angels to escort them all promptly out of your aura space and therefore personal space and also your home/working space, then just leave it be. The best thing would be not to message them directly as its like the blast from the past scenario, ask Spirit to move their vibrations away from yours entirely, otherwise they can perhaps reconnect through the cord(s) if meant to be. I hope not as I hope you do cut your emotional ties and also cord cut with AA Michael. It really does sound like the mind and emotional game element happening here as well as a lot of background "spiritual" or energetic warfare going on which really does give the path a not so good name.........but, needless to say the least, it is a learning curve for all involved and those standing on the cusp too. If in doubt send out Love and Positive Healing Light to lay your mind at peace too.