haha yeah you might be right. Startups typically put a huge strain on the founders and their families. I wouldn't advise anyone attempt a startup unless they are in good condition mentally, physically, and relationally.

In my case, I wouldn't have been able to quit my job and attempt this startup in the first place if it wasn't for my wife taking that hard job for a couple years - so I felt like it would have been a bad idea to respond to her good deed by taking advantage of her and burning her out so I could have my dream.

My anecdotal evidence says, yes, it can be very stressful on the marriage. :)