Suppose minus these points of charu and think charu is a normal girl her marriage is fixed and her would be husband have taken her to coffee shop everyone in the house have accepted their relation... It will be a time for ur marriage and the guy thinks u are not a suitable partner for him and will start liking a new girl who is sweet and have a qualities which u are lacking...
Than that sweet caring girl instead of coming to you and confess that she is in love with ur soon to be husband guy... Will take the route of proving u a not good and responsible and cultured bahu?
What will be your situation if u go through this phase in real life...?
Don't think of serials point of view...
Think its a real life situation