You have "christian" + "woman", but you are fixating on a small event in the "christian" part, for starters.

Anyway, if you're going to have the argument with her, then have it.

Why I Am Not a Christian is an essay by the British philosopher Bertrand Russell. Originally a talk given 6 March 1927 at Battersea Town Hall, under the auspices of the South London Branch of the National Secular Society, it was published that year as a pamphlet and has been republished several times in English and in translation.

Russell begins by defining what he means by the term Christian and sets out to explain why he does not "believe in God and in immortality" and why he does not "think that Christ was the best and wisest of men", the two things he identifies as "essential to anybody calling himself a Christian". He considers a number of logical arguments for the existence of God and goes into specifics about Christian theology. He argues ad absurdum against the "argument from design", and favors Darwin's theories.

Russell also expresses doubt over the historical existence of Jesus and questions the morality of religion, which is, in his view, predominantly based on fear.

This could be a great test case; it depends on whether or not you're boinking her. The council of Nicea derived a "creed" w/r/t the salvatory, redemptive, expiative, and unified nature of Christ. The creed was more or less novel relative to many practices of Chritianity during the previous two hundred years. For the sake of argument, let's say the council did the equivalent work of a symposium postulating the existance and properties of Population III stars. Like Nicea, the symposium had no hard observations of these supposedly earliest stars. Unlike Nicea, the symposium was not held under lock and key or at sword point. Unlike the symposium, "publish or perish" had orders of magnitude more importance for Nicea. Each group had a literal and fundamental belief in a text. The symposium had a literal belief in the post-recombination properties of hydrogen and helium. Nicea held a fundamental and literal view of the entirety of the Bible. Both groups supported their positions by information from their texts.

So. Your friend proposes to you a Theory of Liberal Christianity. And again, this all hinges on the boinking. One may accept Jesus Christ as a god in three persons with unconditional salvatory and redemptive power for all who accept him as such and then go and sin no more, except for the boinking. Can your friend support this theory? Is there any backup?

For your part, you can point to the observed facts about what happens when random atoms and molecules crash into each other (they form minimum energy states) and what happens when energy hits a region with abunch of cheicals (they organize themeselves to absorm and emit the energy) and so on down the line to micelles and DNA.

For the symposium, the Theory of Population III stars is in big trouble, at a minimum it's off by about 60% time-wise. So a new symposium can be called and everyone can get to work finding out why they were wrong.

But when the Theory of Nicean Christianity meets the Theory of Liberal Christianity, the response is "you're going to hell" or "We'll kill you" or whatever.

Hopefully, you have other areas of compatibility that goes beyond her belief system.

It might help if you break it down for her. Explain how there are observable facts and laws under the scientific theory of evolution and how given those facts, the scientific theory of evolution was purposed. You could also show her how this theory is analogous to the theory of gravity, most people understand gravity to be true.

My ex wife was a Christian, just as stubborn as a government mule and swore that she had all the answers. If your woman starts to behave like that time to let her go. However if she's willing to learn teach her.

Google shit, say booya, end.

I moved in with a Catholic woman. Despite the meaning of the name, her world was very, very small. It was a trainwreck because I was treated like an intruder in it. OTOH, David Silverman, Mr. Deity, and Seth Andrews are all married to Christians, so what do I know?

But, thinking about it, why do you date a Christian woman anyway. You must think that she has potency of becoming wiser. Christian parents don't like that their daughter is dating someone that doesn't take the Bible for granted. So in anyway there will be trouble on the way. But again, she can be worth it.

Well, I dated a Baptist for a short time. That went well!
Your relationship is doomed. Sorry to say...

it's only going to be an issue if you make it an issue. If dating a Christian is okay with you, there's no point in pushing beliefs on each other.