Having trust and faith in someone is the major part of married life, trust between husband and wife is based on a sense of oneness.trust is one thing that takes a long time to build and a very short time to destroy.
Angad cam either break or make this relationship. Angad also fails to forget that ss will have him killed once he finds out about it.
if this breaks kriyas relationship, komol knows it will also break hers because adarsh loves pratigya and as he said one persons mistake both families will suffer.