When a guy is abusive and controlling, it is because deep inside, he is feeling needy and insecure. The only way he can fulfill his need for certainty in life, or in his relationships, is if he controls every single detail. His stance is to just say: Hey, I’m in charge, or: I make the decisions here. That’s someone who is a control freak. Over time, that relationship can turn into a very abusive one, as his fear of losing control grows when she tries to express herself.