Absolutely:So there is scripture to support divorce based on no sex?
This establishes 100% that sexual refusal to a spouse is sin. And yes, in context, Paul is speaking explicitly about sexual deprivation here.1 Cor 7:5
“Do not deprive one another, except perhaps by agreement for a limited time, that you may devote yourselves to prayer; but then come together again, so that Satan may not tempt you because of your lack of self-control.”
And exactly what is marriage, Biblically speaking? Jesus quotes Moses starting in Mark 10:6
”Hold fast” is a well know euphemism for sex in that culture, and I would hope “become one flesh” is also understood by all. It has a far deeper spiritual meaning as well, but it certainly means physical sex.”But from the beginning of creation, ‘God made them male and female.’ Therefore a man shall leave his father and mother and hold fast to his wife, and the two shall become one flesh.’ So they are no longer two but one flesh.”
Sexual refusal is also abandonment of the marriage covenant, which Paul also explicitly says is Biblical grounds for divorce in 1 Cor 7:10-16. I’ve counseled a number of Christian men over the years to divorce their refusing wives, with explicit approval of their churches, following church discipline procedures with the refusing spouse. And no, there was nothing physically wrong with the women, nor was there any abuse or other bad behavior of the men. Sadly, the men could be better described as doormats, but they’re all now happily re-married and hopefully not as spineless.