Not gullible, eminently sensible. No illusions, he has revealed his true character, he is a parasite and you can see it. It was good while it lasted, but you have realised that now is the time to say goodbye.
If only other posters in your situation could be as clear sighted as you are being, instead of sometime spending decades, hoping things will change.
Misaligned holes in flat pack garden furniture
Have any of you got all electric cars? Pros and cons please.