I've done exactly that in my early 30s. Bootstrapped, then raised a couple of rounds, couldn't raise again so went back to bootstrap mode, but ultimately failed. It was a rough period, but I survived to thrive as a senior in a FAANG nowadays. My marriage survived too and is better than ever.
Before I started my wife and I calculated by how much we can reduce our spending and figured that between her salary and our savings we could go on for about a year while maintaining an acceptable quality of life (for us) and not going into debt.
While I was going through this her pay went up significantly (and unexpectedly), which allowed me to extend my personal runway.
In the end, after ~four years, we were left with no savings at all and I had to take a job I didn't like because I had to start bringing money in. That was fine - I quit after a short while for a much better job.
So the key was planning ahead financially and agreeing in advance on the limits: minimum standard of living we won't go below, and not going into debt. This proved very important in hindsight because it marked when I had to stop trying - I never wanted to give up, but had I continued, I would have jeopardized the most important things in life.
Another point about the marriage: my wife and I are together in this journey called life and support each other's hopes and dreams. I paid most of our bills while she was going through her PhD, then she did (plus we spent our savings) while I was doing the startup. Now I'm doing well, so she took a partial leave while she's pursuing hobbies and trying to figure out the next step in her career.
Before I started my wife and I calculated by how much we can reduce our spending and figured that between her salary and our savings we could go on for about a year while maintaining an acceptable quality of life (for us) and not going into debt. While I was going through this her pay went up significantly (and unexpectedly), which allowed me to extend my personal runway. In the end, after ~four years, we were left with no savings at all and I had to take a job I didn't like because I had to start bringing money in. That was fine - I quit after a short while for a much better job. So the key was planning ahead financially and agreeing in advance on the limits: minimum standard of living we won't go below, and not going into debt. This proved very important in hindsight because it marked when I had to stop trying - I never wanted to give up, but had I continued, I would have jeopardized the most important things in life.
Another point about the marriage: my wife and I are together in this journey called life and support each other's hopes and dreams. I paid most of our bills while she was going through her PhD, then she did (plus we spent our savings) while I was doing the startup. Now I'm doing well, so she took a partial leave while she's pursuing hobbies and trying to figure out the next step in her career.