There are a couple things that could of happened mainly this was from the facts that you did this through the law of attraction and because you did this through the aspect of love. Doing anything in the frequency of love is a very clean and high frequency.
Not to be overly personal but you say you’re very connected to this person, is this also sexually? Sometimes we can have deep connections with people we have had relationships with and it can definitely carry on into dreams and past life connections with this person. It could also carry kundalini energy as well which is why she experienced the dream. It also depends how it is on her end as well. How she feels about you and how you both seem to have a very subconscious connection that is connecting into your dreams.
I don’t think it was the last one “ to tap into this persons unconsciousness and foresee their dream” because that goes against free will but theoretically it could be possible because telepathy is possible along with precognitive dreaming.
Dreams in general are very symbolic and contain messages, it sounds to me like you guys both have a deep connection and relationship with eachother. Your energy is influenced by the other, obviously you have some type of relationship i’m betting and sometimes people can even have shared dreams so this is all possible. Anymore than that it’s hard to decipher because I am not you. Really try to feel your intuition about this and what you feel happened rather than analysis over it. What comes to your head first? That’s usually the answer. 😉
I hope this helps
much love <3