When you have a weird feeling about somebody, your feeling is accurate. Your feelings as one of the greatest sources of intelligence. Therefore, if you have a bad feeling about somebody, obey your emotions, and distance yourself from the person or people who you get weird feelings about.
For example, how do you know if somebody is toxic or not? If you feel like they are toxic, they are. The wise strategy that is to avoid interactions with toxic people. Also, if you suspect somebody is a scammer, obey your emotions and your gut, and once again, also cut ties with them.
Why is it that in modern day life, we are taught that feelings and emotions are bad, and the best way to make decisions in life should be based on rules of logic and decision making processes? I think it is because there is this trend toward scientism; that in today’s world, because everyone lacks a backbone, and lacks a spine, nobody has the courage or the guts or the chutzpah to posit their own ends and desires. Also, you cannot codify emotions.