I had a dream where my ex was following me everywhere I went and trying to get my attention but I kept ignoring her
Dreams about ex-partners often indicate that the dreamer is still processing some unresolved feelings or emotions related to the relationship. The fact that your ex was following you and trying to get your attention, but you were ignoring her, could suggest that there is a part of you that is still holding onto those unresolved feelings or emotions, but you are consciously trying to move on or distance yourself from the relationship.
Alternatively, this dream could symbolize more generalized feelings of being pursued or chased in your waking life. Perhaps there is something or someone that you feel is constantly on your tail but you are trying to ignore or avoid it.
Overall, the interpretation of this dream will depend on your personal experiences and emotions. It may be helpful to explore any unresolved feelings towards your ex, or any feelings of being pursued in your waking life.