Dreams.

Is there anyone here that think dreams mean something? I keep***** having dreams about my SO that result in him lying/leaving me for another girl. It goes along the lines of him being distant and me finding out why in some dramatic way, and him not caring I know, and me breaking down in some way. I trust him, so so much. We have complete trust in our relationship and I know he isn't cheating or talking to other girls because we're very open with one another.... So why am I having these dreams where he's doing me wrong??