In your heart I think you know the answer or you wouldn’t be posting here like this. No, it’s not normal or healthy. That person is not a friend, and he seems dangerous to be around (maybe not for physical reasons but definitely for mental reasons).

Continue to be secretive and distance yourself from him; that’s not asshole behavior, that’s self-preservation. I hope you are able to separate yourself and get free from this person and in time find actual friends who care and support you for who you are.