Can you control what you dream about?

I had a dream about a friend, and i told her about it. In this dream, we kissed. She freaked out on me, because we've never been anything more than friends. I don't want to be. neither does she. but she won't talk to me now, insisting that i was thinking about her in a sexual way. I tried to explain that it was just a dream, and t hat i wasn't thinking about her at all. So does anyone think I meant to dream that? I just thought that she and I were close enough friends for me to be able to share it with her, to just get a good laugh.