This guy asked me out and I told him we could only be friends he said well I'm going to be your best friend ever. Does he seem kinda pushy to you?

I've heard that type of stuff before

I'm guessing he's just overenthusiastic about being your "best" friend ever in hopes he can climb out of the friend zone eventually. it is a bit over the top though.

A weird thing to say.

Pushy and creepy, I would steer clear of that one

Very

Not really. He must really like you! You might want to feel flattered

Worse.

Pushy , No.

Cocky , Yes.

But again I could be wrong he could be both.

Sure, he just wants to be friends 🙂