Is it normal to have sex dreams about people you find repulsive

So two days in a row I had this dream that I was getting frisky with this person I feel ZERO attraction to. Even funnier, Its my exes friend(who I'm completely over). I've only had a few real conversations with this person. Before I said much to her I had this preconceived notion that she were kinda bitchy and stand offish based on minimal interaction... However when I actually conversed with her, we clicked! I was thinking "wow I feel so bad for judging this chick she's so cool!"
BUT we only clicked in a friendly way though I feel certain she has some sort of attraction to me... She sort of makes intense eye content with me and triess to draw out our conversation. But again I feel nothing like that towards her... But, these dreams have been WEIRD. We're like rubbing against each other. Very brief, and in the dream I Get an orgasm, but weird ...