It's not only the feelings that you have to make sure of. Please try to know him better. Who knows, he might be already married or already committed to someone else? Getting away from him at this stage is not advisable. It'll be much better if you could find time to get to know him better, then, if you confirm that he is true and serious about you, then, that is the time to ask yourself, and to confirm what you truly feel for him. You are still young, my dear sis, and falling in-love is natural, however, getting into a relationship requires all the time that you need.