What does it mean when you dream about your boyfriend not being over his ex girlfriend and then in the dream y'all break up?

When you dream about your boyfriend not being over his ex girlfriend it means that he probably still hasn't and has some kind of feeling towards her. he may not love her the same as you but he can still like her.

This dream is more likely to reflect the dreamer's emotions, rather than the boyfriend's feelings. Dreams are nearly always about the dreamer. In this case, the dreamer is not confident in either herself or her boyfriend. Another possibility (though less likely) is that the dreamer has noticed subtle hints (in real life) that the boyfriend is drifting away. Although she might ignore these hints with her conscious mind, her subconscious is highlighting the boyfriend's behavior through the dream.