IMO this is very bi-polar 1.
I created a reason other then bi-polar during the decades I ignored the professionals and tried to understand myself. It involves a complex net of strange beliefs. The most detailed being that all mankind is connected psychically to one another and bi-polars were just on the verge of what humanity will become.
That is how I explained my obsessions with people. My supposed psychic links. IDK - people call it just extortions of our mind.
When I have a 'connection' via real life or dream, to another human I tend to think it is a combination of being psychically connected, and fantasy.
The thing about trust, or maybe its just a human trait - you will only believe what you choose to - no matter what we say. Some would say - yes part of grandious thinking and delusion, others would say, check meds, and see a doc. Still others might say, go for it.
I say - for whatever reason you felt connected to this other human for the time that you did, does not mean they would feel the same. They are probably not as connected. Perhaps you two will meet in another life.
Maybe your dream was what you want your current marriage to be. Perhaps you have been feeling stale lately, and something about that actress sparked a new ness that your marriage now lacks.
Speaking as one woman I say I think it would be a huge turn on to have my husband say to me, " I think our love needs attention, what can we do for each other to grow even deeper together".
Don't go for it. (None of my obsession driven loves turned out happily and they each ripped up my life - therapist thinks I choose destruction over normalcy because it is more comfortable). Check your meds. Put more into your marriage (or get out honorably). Love and appreciate the intracacies of life. Just my opinion.
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PS: In addition, I should add that delusion is a fairly strong part of my bi-polar 1. I don't even notice I am doing it sometimes, perhaps from developing an intricate and abnormal belief system. Just last week I spend about 3 days trying to psychically help a small child (whom I have never met, but one that 'came' to me). It was days before I even noticed, because it seems so natural. I hadn't even charted it under my 'psychic thoughts' column. It is soooo hard to live life not being quite sure what is real. I totally get your dream thing.
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PPS: Oh, I have also done this psychic connection (obsessional delusion) thing since childhood too. 3rd grade was the first one I can remember, but my 'links' to guys have been since young teen years. Trilafon has really helped my delusions lessen, its been about 5 months since I started it.

Hope this helps.