How do I make my followers leave me?
Solution 1:
There are a few things you can try. If this is a mod follower and you have the creation kit you can try loading the mod file and removing the actor's follower factions, then he won't follow you. And editing morality stats. I had the same problem when I tried to force Delphine to be a follower - she wouldn't leave.
if you don't have creation kit you can open your console and try the following:
Select the follower and type:
setav aggression 1 setav confidence 3
might get him to stop attacking you.
You might try: setav morality 1 or 0
Might make him ignore witnessed crimes.
set playerfollowercount to 0
You can also try (if you can figure out how, sorry I tried a quick search and couldn't find anything) to set the current follower faction (58C4E) ranking to -1.
Alternatively you could try addfac 58c4c (dismissed follower faction).
Also try: disable enable
And this might reset the NPC. I believe there is also a code to completely reset the actor but I can't remember it off the top of my head - but be warned, this resets everything, including their inventory, and they will run around naked for the rest of the game.
A bit long winded but I hope it helps. Cheers.