Yes... Even from the ancient times, there are good and bad marriages, that's why each an every one of us should put serious effort to see that our marriages are working, it's our duty but I know some are unamendable,
don't also forget to always pray, be a child of God and believe him to sort everything out for your good.
You've said it all.
God first and then our efforts to make it work, that's it.
Yeah... It's always your intentional hard workings that keeps a long lasting marriage not love actually,
love, most of the times, can fade away or get lower than before. Then what you know and what you can do will take over to sustain your marriage.
That's it hundred percent, 💯,
Love is never enough, it can fade away as age goes by, but your resilience and determination to make your marriage work...does last.