GhostOfMe

I've just had a dream, that I cheated on my boyfriend. This concerns me, even though my boyfriend and I have only been dating for a short time (maybe a few months).
This wasn't sexual, and I cannot remember the full dream. It was quite odd, because the guy I cheated on my boyfriend with, I've never talked to. He's in one of my college courses, and I see him everyday, we even live streets apart. We've never talked, or anything.
This guy, picks me up in his car. Though I don't quite remember everything that was said beforehand, he kisses me, and I pull him in for another. He then said "that settles it then," while grabbing my hand. I tell him of my boyfriend at this point, saying that I just couldn't do this.
The guy then goes quiet, but asks "How could you be in love with him, when.." And with that my dream abruptly ends...
What is my subconscious trying to tell me?
I would never cheat in my life. Being cheated on before myself, I could never bring myself to do so. I do find the guy attractive, but even still, his personality seems quite plain and boring, and have never had any thoughts of pursuing the man.