Since you believe in the 3 fold law ensure whatever hex you do you are ok with it coming back on you 3 fold. If you want him to stub his toe, make sure your health and car insurance is up to date lol

Personally, this post feels like an incomplete thought to me. This voice is whispering to you to take action, but is a hex the appropriate action? Not barbed protection for your friend (with her consent)? Not a healing spell? A binding spell to bind this ex from doing harm? A spell for realizing and taking responsibility for his actions?

Maybe I am projecting, bc every time I've got a hair up my ass to do a hex after research and introspection Id find the true answer I was looking for much more appropriate for the situation