I feel makers are planning a leap. But difference would be ruhi will do everything to save goenka's but something terrible happens may be like she looses money or something and she has to finally goes to dadisa to ask for money. Dadisa keeps a condition for her to marry armaan in return.
To save her family she may agree but by that time she will already be fell out of love from him. Even armaan might have been black mailed by dadisa on something may be like ab will be held responsible for madhav's death or coma state. Dadisa will free her only if armaan agrees to marry ruhi.
They will stay in loveless marriage until leap. One day before death of madhav they will have a back hug SR to pave a way for kid.
The divorce truth will go with madhav. So abhira will think armaan ditched her post SR. Armaan will act like he is not bothered by her inorder to save her. She will blame him for everything and leave the house because of immaturity.
one more possibility as garvita said shadi baccha. Toh baccha bhi ayega may be the kid will die during delivery because of ab's mistake. She will feel she is responsible for death and will run away later doctor reveals its not her kid in order to give a mother to kid dadisa will keep a condition that ruhi will marry armaan. Armaan wil also agree as his kid needs a mother and he failed to find her.
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