Cancer as well as Scorpio bases his decisions on emotions, rather than logic. Both individuals share the same need for tender love, loyalty and commitment. The two will understand each other perfectly and the problems that may arise will mostly be insignificant and can be avoided if both learn how to control their mood and temper. One of the very few differences between the two is that when hurt Cancer will retreat, whilst Scorpio will bite back, however it will rarely create any problems in this relationship.