How does someone know when to let go of a friendship or relationship?

When the relationship is toxic or abusive in any way, and you’ve taken courageous, loving steps to address the issues and ask for better treatment, and the friend has no desire to change, it’s time to let go. Some people let go too quickly and easily. I'm not saying anyone should stay in a toxic or abusive relationship, but sometimes there’s simply a one-sided sense of unfairness or inequality. This situation is not necessarily toxic or abusive, but the one person is afraid of confrontation and conflict, and so they simply stonewall or ghost the other person. That’s not fair either. The key is that you’ve tried to improve the situation, and you’ve tried to grow and do your best, and you find no partner to improve and grow with you. Then it’s a sign to let go.