It takes a few months and even a small incident to discover a person's true character. The saying, "It's possible to detect all illnesses in the body with a single drop of blood," is so true. Spending time with someone who exploits you, who is there for you when you need them, or who comes to you when you need them, is neither wise nor conscientious. If you persist despite such adversity, it becomes clear that you are just like them.