Maybe you want to break up with your boyfriend in your heart. Maybe you are watching TV series or news or something similar to your dream. Have you ever thought in your mind, "What would happen if this happened to you?" The idea flashed by and reappeared in your dream a few days later. Dreams are generated by information you used to get through your personal emotional processor. They are things that have happened and will not affect your future. Don't worry.
If you really want to interpret dreams, you can look at Freud's dream interpretation. I hope I can help you and adopt it.