I will not do another startup as a non-technical founder unless..

I kind of like the analogy (partly because I like playing with language) of justing going ahead and having the baby out of wedlock (in this case, the "baby" being the project/startup). I mean, if you know you want a baby but aren't in love with someone, it seems to me like trying to force a marriage expressly to get a baby is a bad idea (kind of the opposite of a shotgun wedding -- or a shotgun wedding without the compelling reason in the first place).

Are there challenges to going it alone? Sure. But it isn't necessarily worse than being stuck with someone whose heart isn't really in it.