I don't think Shiv was feelings sorry for himself nor was he any means upset that his love life seems to taken a backseat
Love does not only mean intimacy or hugging and dates...Shiv-Anandi are still enjoying their love but now in different manner...they are now enjoying the love of being parents
Shiv is no kid who didn't know what can happens if a child comes in their life...whether by birth or adopted...AnSh were prepared for a child so i think they were even prepared to know that their alone time would be cut short
But i would also feel that after few months Shiv-Anandi should also try for some alone time together and not just consume their whole time after Amol's needs...i know Amol needs special attention but since they live in joint family i think AnSh can take risk of leaving Amol with his grandparents(although i feel with such immature irresponsible adults i won't think it would best for Amol)