you and Sokka used to be very close, you thought he really loved you like he said, but it was completely wrong. Sokka only sees you as a replacement for Yue, someone who helps him heal every time he feels sad or resentful. The two of you hadn't seen each other in 2 months, you returned to the Fire Nation and lived in a small village, and he continued on his own journey with Aang, Katara and Toph.

(no hate Yue! You should listen "we don't talk anymore" and "the one that got away")