I think this is quite normal, as it is something that happens to me. I don’t necessarily dream of someone from a past relationship, but dream of people I know of the opposite sex who I am interested in but know they are either not interested or in a relationship. Like you these dreams are quite affectionate and there is a sense of excitement in these. Sometimes I am the one initiating, and sometimes she is. Strangely, these dreams have nothing to do with sex, but involve some form of kissing, cuddling, etc.

Dreams are quite complex and there are volumes of books written on them… anything from psychlogical works by Jung and Freud, to spiritual interpretations or even psychic ones. Most commonly (from my experience) dreams usually play things out that we are unsatisfied with. By unsatisfied this means we are either in some kind of conflict, don’t the a solution to a given problem, or are unhappy with the result. By the sounds of your dream you must be unhappy with how the relationship turned out and am secretly hoping you would be still together. This dream shows you still have feelings for her, so your mind is playing out more favourable scenarios. These dreams will keep going until you are either satisfied with this situation (either by accepting how it it or by finding emotional satisfaction otherwise). I know my dreams come because I’m am lonely and unhappy with that situation (hoping I would be with this women instead of being alone). They come and go, depending on my mood.

If I were you I would spend time to reflect. YEs, you have blocked these out, but your mind is still bringing forth this issue because it is not solved. Blocking never solves the problem, you must confront it.

That being said- try to look at other dreams in a similar manner. One purpose of dreams (of many many purposes) is to highlight issues that arn’t fully processed. Be aware of what in your life is going on.