That Mars and Cancer were at odds with each other comes as no surprise, because their relationship has always been a tense one. You see, Mars is in its fall in Cancer, which means its energy is depleted. In fairness, although this watery sign isn’t powerful enough to extinguish Martian fire, it certainly puts a damper on it.
Consequently, while Mars is living under the Crab’s roof, he can be moody, irritable and hesitant. In fact, unless Mars can find a healthy way to express its energy, the domestic bliss that Cancer works so diligently to cultivate will be punctuated by domestic disturbances.