Never...
He never supported Gauri or helped Gauri (Except saving her from the villagers by fake marriage).
He exposed her to Kaali Thakur for asking the phone. He Neither helped her in the Train nor in the Jungle.
Rather she saved him by taking him to the Durga after the attack in the Jungle. He never tried to understand how he came there after he was shot by an arrow. Right after that kaali thakur goons came to catch Gauri again but he left her in the hands of the goons.
Once Again she escaped from the villagers stone attack and came for his help. Even then he was about to leave her declining any help from his side. The goons literally slit Gauri. That's when he saved her.
So I don't know how to accept this. Anything could have happened during these times ( I know its after all a script by the director) But still...
During the Chulbul episodes too, he was keen to save Chulbul not Gauri. When he met Gauri in Kaali Thakur Haveli he was in full rage. Least bothered about her. When he came to know Chulbul is Gauri. He gave a damn and came home.
He brought back Gauri to save his head from Svetlana. OM is never Great towards Gauri. The reasons are so Fragile and lame when it comes to gauri's reason. That's the reason why it seriously lacks intensity and Gauri's character is sometime looks like she lacks self respect and kind of too much and wanna stick in the house.
Till this point OM look too selfish especially when it comes to Gauri and her deeds to him and his family. His respect and understanding for other is great especially when it comes to Anika, shivay, rudhra etc., After all this. His behavior towards Gauri is like exploiting her goodness. Gauri Character needs more dimension that she should be busy with some other things other than OM. Atleast Anika had a business and a Bro to share moments and share screen space. Gauri, she is a detective from the beginning first Svetlana now buama Ji... Better she could have been a CID rather than bhavya.đ