Sometimes when you ask me things I know you're looking for an answer to give me a reaction.

Ex.

You: So, I told this Girl that I wouldn't be her boyfriend and now I won't get any free lunch from her. What do you think about that?

Me: I think you might be the most selfish person I've ever met.

You: What?! I can't believe you would say that!

Really. What kind of response were you looking for?

"I'm sorry, that must really hurt you. Deep, deep down inside. The fact that you can't get a free lunch from someone you are using is really disappointing isn't it? It's incredible that someone would think that was a selfish thing to say/do."

Oh, come on.

Don't ask if you don't want me to be honest. I will never be anything but honest with you, you should know that by now.

P.S.
Definition:
Passive-Aggressive:

: being, marked by, or displaying behavior characterized by the expression of negative feelings, resentment, and aggression in an unassertive passive way (as through procrastination and stubbornness)

Sometimes a method of dealing with stress or frustration, it results in the person attacking other people in subtle, indirect, and seemingly passive ways. It can manifest itself as resentment, stubbornness, procrastination, sullenness, or intentional failure at doing requested tasks.