My colleagues make fun of me. i just dont like it. Should i keep it a secret?

My colleagues make fun of me. i just dont like it. Should i keep it a secret?
I just dont like it when one of my workmate touches me. Even he is frank by nature and keeps touching the other person while talking. He does the same with everyone. but  he is boss’s favorite. i might end up losing my job! What to do? Im scared now!