I like him then I don't, I'm scared!?

I don't know what is wrong with me! I like this guy and he loves me so much. he tells me this and gets me things. he dotes on me and takes me places and gets me whatever I want. he's such a sweetheart, a real gentleman. It's just that I don't love him back. I mean like him, my head is telling me I should date him because he loves me, and will take care of me for the rest of my life, he gets $25 an hour, and he's kinda smart. but my heart tells me i'm only 16, i still like to flirt with guys, have my fun moments and do what i want. my heart doesn't want to commit. but the moment he goes away i ache for him. he is 18. I love him but then i don't, i still want to be single and do what i want when i want and talk to whom i want without someone getting mad at me. no i'm not a h o e or a s l u t. I just like having my freedom. why can't I seem to settle down? i keep feeling like there is something better out there, someone that i will love more than him and be happy with. what is going on?!