[ragnarok451]

IMO this all hinges on if the company has traction with the new direction and pivot. If there is traction, the message to investors becomes clearer and there is motivation to invest regardless of you being around especially if there is a clear story. Both because that investor became unenthused and because you want to leave, I'm guessing there is no traction. In that case, depends on your cofounder's relationship with investors + how much cash is left in the bank. Assuming you raised on SAFE notes, they can't actually force the company to return capital and it's a bad look for them to try. IMO don't worry too much about messaging and just leave, the investors will get over it if traction comes.

However, I would definitely not recommend raising while you're there on paper and leaving right after. This is a pretty material piece of news to leave off of a fundraise, and best case tanks your reputation going forward with investors, at worst is fraudulent and leaves the company (and perhaps you) open to legal action.