I think you made the wrong choice during the talks with him.
The right choices:
• The second meeting with the CEO (after you've done a few of clients' bonding trips), choose the option Be humble about it
• The third meeting with the CEO (after you've done the first sales trip), first choose the option Act hesitant about it, then next choose to Accept his offer
Please note that the above choices are already clued in the game's story if you read carefully.