You know how Siddharth was married to Kkusum at one point, and you know how Taashu was Siddharths Bua (Aunt). And then Kkusum and Siddharth got divorced, and it was after that that he wanted to reconcile but unfortunately he died. If Kkusum and Siddharth never had a divorce, then do you know what Trishul would be of Kkusum's? Her husbands cousin. Right now she is supposedly the step mother of Trishul, and if she was married to Siddharth when Siddharth died, Trishul and Kkusum would be like cousin-in-law's, plus she would be his step mother. And when Kkusum and Siddharth were married, Taashu married Abhay. Taashu was Siddharth's Bua, and that made Abhay Siddharth and Kkusum's uncle. Husband, ex-Husband and Uncle, what a screwed up relation!