You can only see outside what is inside you. When you build a relationship with another human being, you build a relationship with yourself. If someone keeps bugging you, it is your inner part. The part that you don’t see comes to you in the form of the external human being. The inner fears you have, will come to you in the form of people and situations.
You can continue to hide from yourself, to dive into solitude and depression, and to repel the external world. But in that case, you will not see, investigate, or change yourself.