'Can two work together except they be agreed?'
This scripture rhetoric leaves us with a NO answer.
However, in marriage, the consideration of whether you both can work together or not is a consideration that has come too late. The only answer to that question would be to go separate ways (when you always disagree), but there’s no such provision in Christianity.
What you should be considering now is how you can agree in order to work together and that brings us the question ‘does it really take two?’
It’s beautiful when we agree on everything. Where there are no dispersions, disparities or disagreements at all on any subject whatsoever. But this is near impossible for the singular fact that you two are independent personalities. So then, how can we agree in order to work together as the scriptures have said? This answers the question. It really doesn’t take two!
Here's reality. There’s only one person that you know 100% and that person is you. It doesn’t matter that you are now married; you will never get to know your spouse completely. The scriptures clearly state that the only one who knows a man (or woman) is the spirit of that man (1 Corinthians 2:11). You are going to have to take the responsibility of playing your part to make your marriage work because that’s what God expects of you (Eph 5:22-31). The scripture says,
‘If it is possible, as far as it depends on you, live at peace with everyone’. (Rom 12:18)
God knows that you can single-handedly make your marriage a success independent of your spouse.
Without the guide that we have from God’s word, this would be practically impossible, but praise God, we were not left without a guide. He gave us His word so that we can live by it.