Just take a woman who's vegan and has a principle not to be in a relationship with any person who eats meat. Take a new atheists and a believing Christian.

I don't think so. I put significant thought into estimating how many dates (by my current measure conversions with >1000 words count as dates) are needed to find someone who clicks (meaning emotional response/infatuation).

I personally don't really believe that "clicking" is mostly a matter of matching but a process of a mating procedure.

If a human goes through a certain process he feels an emotional response. That process is not easy to engineer. However in the somato-psycho education there are a bunch of practitioners who feel more physical intimacy (=chemistry) with their clients than the feel with their romantic partners.

Practically for myself opening up myself and not screwing up somewhere along the process is a lot harder than creating initial "chemistry".