does blake like chase as a friend?

How we can know it? You should ask Blake.

I have no idea.
But she's dating Penn Badgley (I think) if thats what you're trying to get at.

I'm guessing she does since Chase considers her one of his best friends. :)

Here are some quotes:

Chase: - Blake is like my best friends.
- If I had to call a girl, it might be Blake. We're pretty close, it's nice (on who he'd call when his heart his broken).
- Blake always beats me at Guitar Hero.

Well, yeah I'm guessing. They hang out a lot and seem like buddies.

P.S. His name is CHACE.

Yep, I've read that they are really good friends :)