Please it is about episode 29 which i watched on voot. SO read by your choice, if you haven't watched it!
So Ridhima got caught by Vansh and when he pointed out, why is she spying, she said you can't differentiate between a wife and physiotherapist. Can't i see the house as i am your wife and family member 
 Ok that's good Ridhima. I agree with you there!
Then later when she wakes up in morning. Vansh was already in bed and awake.. He clearly said tum adhuri patni nai ban sakti na or you can't be incomplete wife na ( what does he wants
 I am innocent
)
Then he pointed out you use your right as wife, then roam here and there like a drone, then i have right to sleep on bed as husband
Then rids say joke should be in limits. Ok fair enough.
 
But what about you who is making marriage a joke and then use it whenever you feel like
I loved how Vansh exposed her hypocrisy with simple lines. You want to be wife when you want to , even use that against Vansh. Then he has right to point that out lol
Another thing i noticed during the same scene when he puts ring in Ridz's finger, the choice of bgm and lyrics,
" Tere ishq mein had se aage guzarne laga
Tuje chahna ab to mera junoon ban gaya "
So they are already hinting Vansh's love will be super possessive and obsessive and cross every limitđ˛ So he is definitely falling in love as public demand is about Riansh,