Where are you going?

Walking on campus talking with David about his new job.
Grace comes up to us and asks me: "so where are you going?"

(Thinking that she's asking me where I'm going after I graduate)
I say: "I don't know Grace! I'm still trying to figure that out" 
Grace: What?
Me: What?? 
Grace: I meant where are you going now? 
Me: oh...haha I'm going to Commons Garage