Most Helpful Guy
you mean "he is very protective of me"?
anyway most guys tend to be protective over girls in general.
(but not me :-P )
Most Helpful Girl
All that means is he's a loyal friend. In order to find out if he likes you, pay attention to how he acts around you. Does he ever flirt with you? Tease you? Ask you personal questions? Does he always want to hang out?
Hope this helps.