leave or stay?

Jessica

my boyfriend -of a year and half- and I have always been close. I love him to death, and I wouldn't change him for the world. Recently we started arguing more often because he doesn't know how to let out his frustration and the only person he takes it out on is me. He starts to act like a Dick and I tell him if he keeps acting that way there would be no point in me to stay. I don't know what to do anymore, I don't want to lose my best friend.