Just a dream, your mind is playing you! Don't take anything sugary before bed. It really plays with your brain when your sleeping! If you love your boyfriend and trust him so much, the dream is not relevant. :)
On some level you feel threatened by him...your telling yourself sub-consciencely that you need to move on...painful yes...but listen to your inner self
Maybe it's because you are subconsciously scared of being in a relationship.
you want to be free and he is holding you down ... or you are holding your self down to him. or maybe you are guilty about how you feel.