I think you need to ask the big question: if this person were unconnected with your existing co-founder would you add her as a new co-founder? That includes dec

I think you need to ask the big question: if this person were unconnected with your existing co-founder would you add her as a new co-founder? That includes deciding whether you are comfortable working with her long-term. If not, there's your answer. There have been cases of married co-founders working out great for everybody. Diane Greene and Mendel Rosenbaum at VMware are a nice example. [0] [0] https://en.wikipedia.org/wiki/Diane_Greene https://en.wikipedia.org/wiki/Diane_Greene