Hi tapish, my advice is to watch/ read updates, but try to keep an emotional distance and only watch the RaDev scenes. I know what you are saying because I would get depressed sometimes and it would affect my work. But now when I get frustrated, I tell myself that this should not affect my life - it is a fictional tale, composed by the whim of a few writers and subject to the limitations of actors' contracts, TRP ratings, the desire to keep the show on the air for a long time, etc.
Also, if they give us everything that we want, people may stop watching because it may become boring, so they HAVE to stretch it. However, in my mind, people in love are always supported by God, and never have to face so many obstacles. Just remember to be practical and remember that Choti Bahu is not real; it is a tale of tormented love and therefore we will be tormented...
Not sure if this helps... sometimes I spin off the story in my mind and make it go how I want it to :-)