@omshreejaanu, Shravani loves to manipulate she knows how much Sachin means to Manav and his parents so whenever she wants to get her way she uses her son as a weapon. Even throughout her pregnancy, it was never about her child, always about her.
As for Archana, her sacrifices are not only for Manav, she sacrificed her marriage to Savita's sake too because she knows how much Savita wanted her grandson. She has also made sacrifices for her family as well.
It would've been nice to see Jaywant and Archana marry but not after what his intentions are towards her. It seems the only one who has come in close competition to Manav is Satish, he would have been perfect for Archana.