Instead of Lo'ak mating with his crush, Tsireya who was a reef na'vi. He had mated with another forest na'vi, your mother and had you as that union.. but your mother died due to RDA.

which Lo'ak now 30 and you who were now 14, he had re-mated but with Tsireya but you didn't like her or your half-sibling(the children Lo'ak had with Tsireya) and you became as rebellious as Lo'ak when he was 14 always finding a way to get in trouble and you didn't care if your half-siblings looked up to you, you always pushed them away and said they were never your siblings...

and lo'ak he just doesn't know what to do with you..