Is it normal to fantasize about the Starbucks girl?

I went into a Starbucks not looking for trouble when this cute thing asks me what I want. She then comments on my shirt Dallas Stars shirt and if I'm watching the game tonight. Then Mavericks talk and I'm loving it. A cute chick talking sports with me and stuff. Well, the problem is I am married and never cheated but can't get her off my mind. How do I move on from this fling I am imagining? P.S., it also happened later at a McDonald's drive thru. How do you stop women's images from following you all night long?