What verse leaves over the possibility that divorce for reasons other than fornication is permissible?
what is your wiggle room verse on same sex marriage? Errr... You need to read the thread again. I just said that an ethical verse is not absolute simply for being in the NT, case in point: divorce and remarriage for reasons other than fornication.
I Corinthians 10:23“Everything is permissible”—but not everything is beneficial. “Everything is permissible”—but not everything is constructive. 24Nobody should seek his own good, but the good of others."
What verse leaves over the possibility that homosexuality is permissible, beneficial, constructive or for own's good or that of others?
I haven't defended that position, so you are going to have to play with someone else on that one, until you get back on topic here.
As to your question though:
I Corinthians 7:1Now for the matters you wrote about: It is good for a man not to marry.a 2But since there is so much immorality, each man should have his own wife, and each woman her own husband. 3The husband should fulfill his marital duty to his wife, and likewise the wife to her husband. 4The wife’s body does not belong to her alone but also to her husband. In the same way, the husband’s body does not belong to him alone but also to his wife. 5Do not deprive each other except by mutual consent and for a time, so that you may devote yourselves to prayer. Then come together again so that Satan will not tempt you because of your lack of self-control. 6I say this as a concession, not as a command. 7I wish that all men were as I am. But each man has his own gift from God; one has this gift, another has that.
8Now to the unmarried and the widows I say: It is good for them to stay unmarried, as I am. 9But if they cannot control themselves, they should marry, for it is better to marry than to burn with passion.
10To the married I give this command (not I, but the Lord): A wife must not separate from her husband. 11But if she does, she must remain unmarried or else be reconciled to her husband. And a husband must not divorce his wife.
12To the rest I say this (I, not the Lord): If any brother has a wife who is not a believer and she is willing to live with him, he must not divorce her. 13And if a woman has a husband who is not a believer and he is willing to live with her, she must not divorce him. 14For the unbelieving husband has been sanctified through his wife, and the unbelieving wife has been sanctified through her believing husband. Otherwise your children would be unclean, but as it is, they are holy. 15But if the unbeliever leaves, let him do so. A believing man or woman is not bound in such circumstances
; God has called us to live in peace. 16How do you know, wife, whether you will save your husband? Or, how do you know, husband, whether you will save your wife?
Christ did not say "except for religious differences."