Let it go...

This one has always baffled me, but the more we learn about mental illness we find explanations to behavioral issues such as hostility.  It's not normal to constantly be an aggressor or to hold a never ending anger towards someone.  If you've ever encountered such a person you'd know that it takes a huge amount of constraint, but if it goes on over an extended period of time it comes to a point where it becomes pitiful.  Eventually these types of people isolate themselves and lose everything for the "cause" that was self-manifested.  Diagnosing what you're dealing with and healing are the keys to recovery and getting your life back.