The easiest way to detect that your love is waxing cold towards your partner is tolerance; tolerance is simply going against your inner desire. It is actually worse than “hate” because in the case of “hate”; you have resolved your feelings towards your partner. It’s either you are hot or cold; white or black or love or hate because not taking a true position on how you feel towards the person you vowed to spend your life with will definitely affect you ability to move forward in every aspect of your life.
Tolerance is resistance to love; we are built in such a way that we create a thick line between love and hate especially towards those that we are emotionally involved with. In the movie; “Why did I get Married?” by Tyler Perry; Tyler explored the possibility of resolving Marriage ruts and conflicts by changing locations without the influence of kids, friends, relatives, etc. This particular solution to Marriage rut was also explored in the movie; “Couples Retreat”.
Though, this solution sounds like a good idea; just you and your spouse without external influences and having fun together in a different location; but I have never personally experienced it so I cannot be sure it would work. Despite my inexperience, I guess if I was in this situation, I will be open to it. Instead of tolerance, why not iron the issues out in an isolated location and who knows; may be?
Have a lovely day!