I have bad news for you. Cofounders are like any other employee. You don't automatically get a say in every decision just because you were one of the company fo

I have bad news for you. Cofounders are like any other employee. You don't automatically get a say in every decision just because you were one of the company founders. Often, the CEO has the power to simply fire you. The CEO certainly has the power to demote you to a non-decisionmaking role. The CEO does not have to listen to you about every little decision like having a company retreat. First, you should have gone to the company retreat. As a manager it's your responsibility to support team-building things like this, even if you don't agree with the CEO's decisions. Second, your communication style is hurting you. Don't just reject the CEO's initiative. Don't complain about your boss on HN in a way that, honestly, will be completely obvious to your CEO if they read this thread. Politely bring up your objections, and if the CEO overrules you, accept it and move on. It's a company retreat, you must have more important problems.