A few people have my apartment key. They cannot come in, unless it’s an emergency, without letting me know first. I have a friend’s key and she has a total open-door policy. Invading my me-time is one my limits on friendship.
I don’t break laws or clean up huge amounts of blood. I also never lend large amounts of money unless we make a signed and witnessed written agreement about paying it back.
If a friend becomes so negative or self destructive they begin to drain or damage me then I cut them loose to the acquaintance stage. Love and patience don’t give me the superpowers to save anyone, I tried that before.
I couldn’t sustain a friendship with a person who lied to me or betrayed my trust, nor with a person who made excessive demands, who made false accusations, or who exhibited rigid, intolerant, judgmental thinking.