Why do i keep dreaming about demons?

i have dreamt about spiritually conquering demons, since the age of five or six. well last nite i dreamt that me and my boyfriend were moving into a new home and were discussing where we were going to place the couch when suddenly this demon comes out of another room hauling *** towards my boyfriend and hes tackling it then it comes after me and i tell it to back down and leave me alone then i awake. the one i remember from my childhood is that i am sitting on a bed being attacked by a demon and green slime is coming from my mouth and i am singing Jesus loves me. Am i being attacked in my dreams? quite frankly i don't know how to perceive this.