We Have That Kind of Friendship.

I'm sitting here, trying to explain a schedule to Sara.  She's a little confused, so I reword it a little (probably making it more complicated... that's how I do.) and try to explain it again.  She stares at me and says "Oh, okay." And goes back to her computer

A minute later, she looks up again and says "I don't really get it.  The 'oh' was for sympathy."

Yeah, we're in college.