[al2o3cr]

As stated elsewhere in this thread, your co-founders seem decidedly immune to the sort of data that would typically demonstrate "all-in". So here's my advice: stop guessing what those yoyos want. Get them into a meeting and ask them flat-out: "what would satisfy you on this point?" If they can't come up with anything or give you a bullshit answer, QUIT ON THE SPOT.

A month later, if you've provided whatever they said would satisfy them and they're STILL whining - see previous action.

You shouldn't put up with "I'm mad and I'm not going to tell you why" in business relationships any more than you should in personal relationships.

Also, keep in mind that you may walk out of that initial meeting without a job. The sort of nasty assclowns that your co-founders sound like don't typically appreciate being directly challenged.