Ugh, i hate boys. help please ): ?

So, this boy has been non stop asking me if i loved him, and since we are 13 i said i didnt know what love was. He would get really depressed and one day he was piss*ng me off so i told hin that i did, love him, and now he wont let me stop saying it. I dont love him. And he asked me too the movies. I mean hes sweet and nice and he flatters me but i dont want to be anything more thab friends. Whenever someone likes me i get sorta, addicted to them so i dont wanna be too mean. How do i get out of this?