Ok. Throwing someone's words back at them with "hah" is being a jerk. Claiming someone "wants to lie" when there are plenty of other obvious explanations is being a jerk. So is venting your frustration on some dude just because he happens to work for the company, especially when he was trying to be nice and you prefer to assume bad faith. So is overposting about this instead of saying your piece once and letting it go. And actually, acting like your bad experience generalizes universally and justifies your being vengeful, is also kind of being a jerk.