Wasn't trying to offend you, was rudely letting you know that you weren't helping him by giving him the wrong information.
Also I didn't run out of comebacks, I repeated it because you didn't read properly, and it was the truth. Quite frankly I don't have time to waste with unintelligent children such as you, yet for some reason I do it anyway.

Don't get mad at other people when you're the one who makes the mistake, you're responsible for your actions, so take responsibility...