When someone surprises the hell out of you. And you can't keep from flirting back. And you can't wait til you actually go out with them b/c he really asked. He didn't really hint around liking you, he actually came out and said so. When you're trying to figure out if you do actually want to date him and have a relationship with him. Do I want to waste my time on someone that I think likes me or the guy I know likes me? Grrrr....