"You seem pretty upset" is a pretty passive aggressive statement. In fact, it's openly hostile since it's tantamount to stating that I am not in control of my (perceived by you) emotions (of which there are actually none). Coupled with you pretending to be the aggrieved, polite party, the irony is thick. In fact, needing to write this reply is pretty comical, thanks for the entertainment, I guess.

Edit: The more I think about it the funnier it gets. Do you think I am "not in the tech world" and upset by it? Or that I don't earn a lot of money and am upset at that? I am genuinely curious in the assumptions you made to arrive at the conclusion that I am upset/offended.

"You seem pretty upset" in this context is basically the same as saying "you mad bro?"

I hate when people say that during a discussion or argument.

It was probably your aggressive "no one cares" that got people thinking you're in a bad mood...