To be clear: Ms. Wolfe is the obvious victim in this situation. She did nothing to deserve it, and all responsibility for it falls on the frail, slimy shoulders of Mr. Marteen. There is no way she could have predicted that he would act like this. However, she could have known it was a risk.
Furthermore, the fact that Mr. Marteen is 100% responsible for this situation does not invalidate my advice. I am merely pointing out the risks of starting a company (or joining one?) with your significant other. To paraphrase another HN commenter:
When the police teach people not to leave their keys in their car while they pump gas and go get a snack, is that victim blaming? No. It's advising people to consider the risks of their actions, which could unintentionally lead to a bad outcome.