14 years old dating a 17 year old?!?

So I am a freshman and I have a class with a senior (17) I really like him and people are telling me in wrong because he is three years older than me. but he isn't like any guy I have ever met. he is really caring. ex: one time I TOLD him I wasn't going to do my work considering how i have an A+ in that class and he was all caring ab it telling me I shouldn't slack off and I should do the work anyway. but like idk how i talk to him ab how I feel and how I tell my parents. HELP!!