There is this guy I work with that I am very interested in. He is in a relationship though. We flirt all the time but I know that flirting can also be innocent. However, he always tells me that he wants me to make the first move. I have told him that I don't want to make the first move because he is the one that is involved in the relationship and I don't know if he has feelings for me or if it is just a fling. What should I do? Should I go for it and see what happens? Or should I wait and see what he does?