That's insane, I've spent 5 years on my PhD and still haven't finished it working on it mostly full time to such such a degree of dedication that my girlfriend

That's insane, I've spent 5 years on my PhD and still haven't finished it working on it mostly full time to such such a degree of dedication that my girlfriend of 6 or so years packed it all in and left. PhD and Startup and marriage+kids on one income? (Yet, one of you is doing a PhD and one is doing the mothering - who is actually earning money?) And building a family on top of the shaky foundations that startup life provides? How? Stranger that the tips included with dealing with such an insane choice of lifestyle seem to consist entirely of very thin dating/relationship suggestions. I mean - there is a world of potential insanity involved in doing just a PhD alone - but with kids/wife/startup? I'm gonna need a whole lot more than just palliative cliches to help me deal.