Dreaming of your ex means you have not learned to let go and move on. The reasons why good things come to an end is because all involved parties realized that there is no future in the relationship. The initial stages may have been good, but you grew tired of each other and now that’s why they are your ex.
An ex-girlfriend in a dream signifies being emotionally empty, unhappy or unfulfilled. This may be because you are feeling emotionally neglected by the one who could be your ex-girlfriend or by someone else close to you currently. It might be because you are looking for love and validation from others and not from yourself – which will only lead to more heartache and disappointment when people inevitably leave or reject you time after time.
The dream about an ex-boyfriend may be a warning that you feel insecure about your relationship with the person who is your current boyfriend. This may mean that you are afraid that he will leave you for someone else and so are dreaming of the past as a sign of some inner insecurity or fear.
It also can mean that there is an emotional distance between you and the man who is now your boyfriend, and this emotional distance may already exist in reality or it may even be something that you are deliberately maintaining. The most common interpretation of this sort of dream is one where the ex-boyfriend is being revived as a projection of some need to relive past emotions, possibly because they were better than what exists right now.
Take up a new hobby, and make new friends to replace the routines that you would normally do with your ex.