Thanks for all this input guys, but again, I'd like to point out, I do know what the situation is, I am quite clear on that. She isn't going to return my feelings. I need to move on. I've been aware of this for years.

Knowing the situation doesn't automatically turn my feelings off, as much as I wish it would.
There isn't some switch I can flick and I stop feeling what I do for her, as much as I would like there to be.

So advice like "the most important thing for him to hear and tell himself is that this girl is never going to return his feelings and he needs to move on." is all very well and true, but I already know this too well.
The problem is how to move on, and I was asking whether you guys thought that the dream could be a sign of my subconscious starting to move on?