Have you ever had a crush on someone but wish you didn't?

You know that feeling like you know nothing is ever going to happen because you know for a fact that they don't like you the same way? If you've ever had this feeling and gotten rid of it how did you do it? Cause honestly I'm falling for this guy and I really wish I wasn't cause he's not my type for one thing and I can tell for a fact nothing will ever happen. I also don't even want to be thinking about a relationship right now when I'm focusing on me only. I'm frustrated and I just want to strangle someone.. :(