I think the simple answer to this is because it’s believed that it’s not even a real issue. It’s not even relevant when it comes to marriage.
But it should be.
Sexual abuse in marriage is, sadly, way more common than people realise and it is a very serious issue.
Why though, in the church, is it not really even talked about, little alone seen as an issue?
From my personal experience there is two main reasons.
1. We are taught that once married you no longer own your body. It is your husbands.
2. We are taught that sex, aside from for procreating, is all about men.
Men need it. Period. It’s not generally seen as something that both men and women need and want. Just the men.
Follow that with purity culture and you have a recipe for disaster.
An entire group of people, generations even, with the belief that women are men’s property to have sex with when ever they want.
Now I know that this is not true of all churches, there are bound to be some that speak up against such beliefs and teach the truth.But these beliefs are quiet widely believed in Christian circles. Whether or not its been intentionally taught or not, it’s a common belief for many Christians.