i pretty sure shobhas return nothing to do with malthis happiness.
she is angry with tosty and wants to take revenge on her.
she will surely trap every one and will create impression in house malthi is better than tosty.
tomorrows precap already show she will alienate every one from tosty.now i understand why they run key advt in promos.surely shobha will plot to get entire house hold to malthis hand.
she will also want to create tosty as bad in house.
except ved nobody has suspicion on shobha.so i think only ved can help tosty in future track.