"I will not promote": Co-founder not responsive again, should I continue driving the idea as the CTO?

So, I applied for this role on Wellfound, got accepted, shared moments of brainstorming together, build a landing page to validate demand and engage potential users. In the agreement signed, he was to deal with distribution, company registration and the likes. I was sensing something off when we had no video call but chat all through the time. He claimed to hire some guys (2 of them) for outreach. I saw their posts (very scanty though, no much engagements), by end of March didn't see anything again, even my