I got one word for you all....cash.
Max, I gave up a business of my own not once, but TWICE. Both times it hurt like hell, because the basic business idea was sound, but I could just not manage it myself and be a healthy, happy person. Perfect partners do not exist, and some-time partners work out some-of-the-time. Both decisions were ultimately good for ME, if not the rest of the world.
Do what you gotta do, and everything will sort itself out.
Dani