Has a cure been found to stop un-killable npcs from charging you every time they see you? So annoying. I can't reload from before because it's in all my saves. PC Version.

yes pay the fine cast calm on them or if u realy dont want to deal with them there is away around the unkillable but it will ruin your game ill tell u after u try calm

I was hoping more to stop him for good.

you should make him hit a civilian so the guards will get aggroed at her and she will be aggro towards the guards all the time instead of you.

If it's the

then you're pretty much screwed unless you can load an old save. That is a very frequent bug that occurs if you don't complete the quest in a specific way.