If you want to understand Scorpio and the Scorpio-Pisces relationship, watch “Thelma & Louise”. Louise archetypical Scorpio, Thelma archetypical Pisces. It’s about deeper bonds and how far Scorpio will go for love, even friendship. How defending people is part of the Scorpio character and how the idea of dying for a cause - or a person - is not that foreign to a Scorpio who loves.
If you cannot understand Susan Sarandon’s character’s actions in this movie, do not get involved with a Scorpio. ;) Between these 2 signs, it shows all the flaws and all the good parts.