Help about my YOUTUBE FRIEND ===================?

[Rita L.]

I made a new YouTube friend like a couple days ago. I haven't revealed any personal information... he doesn't know what I look like, etc. We've just talked about hobbies, beliefs, other random stuff.

He's always saying he's so glad to have met me, he can't wait to hear from me again, I'm not like other girls, I am so awesome and cool, he hopes we end up being really good buddies, blah blah blah.

The last message he sent me was mostly that. To be honest, it kinda freaked me out. He already seems so... needy. I don't want a boyfriend, I didn't even think I would even make a friend on YouTube. He doesn't know what I look like or even know how old I am... all he can "see" is my personality. So it's not like he's a pervert. When I said I didn't want to reveal a lot about myself, he respected that. But he comes off as really needy already to the point it's a little creepy.

What is a nice way to say "back off"?