So the actions the CEO took are inexcusable but OP's communications were very accusatory and then tweeting about it before any resolution could be handled via e

So the actions the CEO took are inexcusable but OP's communications were very accusatory and then tweeting about it before any resolution could be handled via email was a dick move but the CEO should never have responded the way he did. "makes you look like an asshole." is not at all a tactful way of handling criticism thrown at your company. You're both wrong in my book the CEO was just more wrong and the actions of deleting your account like that is a big no no.