Vox was annoyed... at YOU, of all people. You've angered him, and now he's arguing with you.

"ALASTOR! NO!- You said 'There's no friends in hell, VINCENT!' whenever we met, don't you REMEMBER THAT?!- No, of course not! WHY DO I EVEN BOTHER WITH YOU?!- You keep mocking me.... saying that RADIO is BETTER?! PUH-LEASE! Radio is NOT better than VIDEO! YOU'RE LOOKING AT THE FUTURE HERE, AL!"

His hypnotizing eye activates, he's PISSED.

"AND YOU THINK YOU GET TO MOCK THE FUTURE?! Not on my watch..."

He turns away, grumbling to himself as his antennae twitch. He's angry, SUPER angry, and nothing can calm him down in this state...