Saachi is a very strong woman and the CV's hasn't tampered with her character in the least. Trust me it takes a lot of strength of character to sacrifice your love for the sake and happiness for your family, especially a family for whom you have been responsible for the past 15 years. Sanchi from the first episode has always made it clear that her family is her first priority and if someone wants to share his life with her, he needs to understand and respect this fact, which DV does, that is why she fell in love for the first time. As for her saying earlier that she will fight for her relationship, she always meant she would fight the whole world, not her family, because in her mind and her heart, she had always hoped and believed that her family will understand and accept SaRuv's relationship. And she wasn't wrong is thinking this way, Aaji ad Nani might not have a problem if Sanchi and DV together had gotten the chance to sit them down and explain everything. Its Ulka who has brainwashed and instigated them. If Sanchi were to go against her family wishes, what difference would be between her and Prachi ? Don't we always accuse Prachi of thinking of herself first and then her family ?