Goku constantly died and when he was alive all he did was train and eat. Leaving Chi-Chi to raise their two children alone in the middle of nowhere and the only person who ever visited was her dad the Ox-King. Also if you re-watch the series you'll realize that all Chi-Chi did was cook, clean & constantly fold laundry. But what should of been the last straw for Chi-Chi was Goku was turned into a child during dragon ball gt. Smh..The only healthy marriage In the dbz verse was Krillin and Android 18's.