I am not a dream analyst so I can't tell you what your dreams mean. I have had weird dreams on occasion and usually it was nothing more than a weird dream. Maybe it's some insecurity about something in your relationship. I honestly don't know what to tell you about it BUT I probably wouldn't tell your boyfriend. It would probably freak him out more than it has you and that can't be good. If you know you wouldn't do that for real I wouldn't stress him out with it at all. Maybe someone else can help with the interpretation.
Heidu