i care for you (definition): I care for you
Ok I know I'm not a guy BUT, if he says he cares for you it means he cares about your feelings. In other words "I like you but I don't wanna get with you." Not trying to sounds harsh but I think its important not to look too far into things. For your own sake...good luck, doll! :)
I'm not sure if it means as a sister or as someone he really likes, but one thing is for sure; you are definitely not just another girl to him and he won't treat you as a HPOA
If you want to know what he meant, you're going to have to have a conversation about it with him. Be prepared to tell him specifically how you feel if you broach the subject.
(there is no such thing as secret guy code)
I guess he is a promiscuous chicken, don't fall for that.
It can mean a lot of things. If he's shy it means he has a crush on you. If he was using it to reject your advances, it means he just wants to be friends.