Here's the context.
A couple of days ago, I was playing basketball by myself without any friends. I mean I played basketball with people that I’ve never met before.And a couple of minutes after the game was over, a girl approached me and asked me to play basketball with her. As it was something that I(’d/'ve) dreamed of experiencing for a long time, playing basket ball with a girl, so I said yes.
Here I think 'd works here because it is referring to a state before I met the girl. Am I right?
Best Answer
You are quite right. It may be true, as other answerers suggest, that the dream continues into the present (although ordinarily we would assume that once it was fulfilled it ceased to be a 'dream', an ambition); but you cite that dream as the reason for your past action. Consequently, it is the dream which led up to that time which you are evoking, and the past perfect is appropriate.