<human>: Give me the gist of the text in a nutshell

My bf does not like my dad for multiple reasons which are true (he lies, screams, controls us) However, he also believes my dad is abusive towards me and a bad influence, both of which are not true. I can handle him not liking my dad, but the main problem now is that he cannot talk about anything other than his anger toward my dad. He constantly tries to get me to distance myself from my dad. It has gotten to the point where I cannot communicate anything to him because regardless of what I tell him, he brings it back to my dad, and every time I complain about a problem in our relationship, he finds a way to blame my dad for it or sidewind the conversation to go back to his anger for my dad.  I now find it difficult to be in a room with him and dread spending time with him because of how argumentative he has become. What should I do? 

Side point: My dad does not like my bf either and often I will be ok with something he did until i speak with my dad and realize that my bf is actually doing many hurtful things.  I then appreciate my dad bringing those things up, but my bf hates my dad for allowing me to realize his flaws.
<bot>: BF wont let issues with my dad go and I now can't find peace with him or communicate with him about anything else. Help!