In my opinion, Sheetal is not at fault for anything.
She is doing all this with good intentions. She just wants to make Kripa's life better because she thinks she is not happy with angad, caring like a good friend.
The only mistake she has is, she just has a wrong picture of Angad, She thinks he doesnt love Kripa, but thats not true. Her ears are just being filled by Mishty! Thats not her fault!
She does have good intentions for Kripa, but she doesnt know, she is breaking up a happy family!
XoXoXoXo
Neelu😳