The startup is effectively doomed at this point. It's almost impossible to recover from > We get accepted and he calls me on to a meeting with the other founder just 2 days ago and essentially tells me that in order for him to quit google and be fully committed to our company he thought he deserved more equity so that he could feel like he’s valued here. CEO and COO proceeded to tell me that at that point i was less…
Not a lawyer here but get counsel and do not do anything to harm the other company harming you.