seth, god of war, is your old lover, when you two were young adults. you're a god(ess) too, but you had to broke up with him for your own good and build your own life somewhere else. after a few years, he certainly has a wife, a son, and seeing you, the love of his life, how can he possibly react ? he probably thinks that you're dead... he is now lost in the desert, and you, living here with nomads. you were looking for some water when, finally, you see each other.