Again in today's episode, we see Priya's compassion for Gaurav as she tells him that he is on the right track!
Priya should have known about Gaurav long time ago, at least he would have someone on his side who understands his position and what he is going through, and perhaps guide him.
Adi was the first to know after Devyani, but he was more concerned about Vidya (although it is justified) and did not form any emotional help for Gaurav.
Devyani was always more worried about what would people think and what would happen if Brahma found out, never comprehended Gaurav's pain or did anything to alleviate it, even though she promised to make it all better.