Can a marriage be rekindled

Yes it can, and it is encouraged when things are starting to wane. One of the key elements to any marriage or relationship is communication. Once that stops, things can go downhill very quickly. Honesty is another virtue along with total trust in the other person ... Also say "I Love You" often ... you will be surprised at how much better things will go along ... Put your spouse on the pedestal above anything else you treasure most in this world - believe me, it works.