But Reyansh only wanted to live with her without marriage... He had a feeling that marriage takes away his freedom.. he strongly believe this.. that's why even Dadi couldn't convince him for any business marriage like Arman and Vardhan...
He didnt seem ready to get married when they were young. But he was going along with her plans for marriage and having kids later in life. He didnt seem to mind them. Thats what i got from their flashback scenes.