@zenele, when I hear a Jewish person speak of being “more religious” is has a specific meaning to me that doesn’t really carry over to the other faiths that I know of. I think that’s because in Judaism (as it seems to me) it’s possible to view your practices and observances on a continuum of both quantity and quality, whereas in the other varieties of religion that I know, from evangelical to high church, it is mostly just quantity. Any qualitative difference would be internal but would not necessarily translate into being, for example, stricter with food or more scrupulous with certain holiday customs.
So—if you had asked the question another way, I would have answered differently. Since it’s a speculative question anyway, for me, I would have taken it whole: “If you were Jewish, would you become more religious for a partner?”
In that case, I would answer yes, up to a point. I don’t think I could handle orthodox Judaism. For instance, I could never be so punctilious about my housekeeping and sweep out every last speck of everything twice a year. Instead I would be a tormented slacker caught in a battle between perfectionist OCD and a visceral aversion to housework. But to go to synagogue more often, keep all the holidays, avoid forbidden foods, yes, I could do that. Maybe even mikveh, if it were seriously important to the man.
I don’t really see any counterpart to all that in the many flavors of Christianity with which I am acquainted.
But convert? Still no. I am a committed atheist. If I were Jewish, I would be a Jewish atheist.