Is it weird that I like him?

So there's this guy that my younger brother is friends with and he's 14. Maybe I just like the attention I get from him, but he's going to be a freshman and I'll be a junior making us actually 3 years apart. Is that weird? My one friend had a fit and was like, "you CAN'T like a guy three years younger than you that's gross!" But I'm not even sure I like him. He just teases me a lot and I think he's cute, and I don't think I'd ever want to date him anyways. It's not like he's shorter than me or anything either. But is this just creepy?