The day after Kumud and Kshitij's marriage, Kkusum was praying to God to for a successful Kumud-Kshitij marriage because her previous marriage was nothing but sadness and heartache. Then Abhay's father said to Kkusum that Kumud-Kshitij's marriage is "God-blessed" and "Parents'- blessed" and because of those blessings, nothing evil can come upon them and actually succeed.
Dadi hates Kumud but I don't think that she wants to destroy Kumud's marriage and even if she did have that intention, she would never be able to achieve it because Kshitij is Kumud's God-gifted husband and no one could ever break the bond between them.
I totally agree with u!!!!