Sai and Jags can never marry .. because he killed her father .. she can forgive him and move on but cannot accept him in her personal life .. this issue is far more grave then Savi calling jagtap mama ..
You know those historical novels, which do take their material from real life.. where warring tribes make peace by inter marrying. One chief marries the daughter of his enemy..and they have romantic stories develop from there..though they have done terrible things to each other. So such things are possible. I don't mean to say that Jag should get Sai, but the fact that he killed her dad is not really the insurmountable obstacle here in view of Jags reformed persona. Any more than Savi calling him Mama.
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